This is the professional website of Howard Haber, Distinguished Professor of Physics at the University of California, Santa Cruz.
RECENT NEWS
March 7, 2023: My presentation to Physics 205 can be found in Section V of this website.
February 28, 2023: Today, my paper in collaboration with Joseph (Zippy) Connel and Pedro Ferreira, entitled Accommodating Hints of New Heavy Scalars in the Framework of the FlavorAligned TwoHiggsDoublet Model, was posted today on the arXiv. A link to this paper can be found in Section II of this website.
Searches for new neutral Higgs bosons of an extended Higgs sector at the LHC can be interpreted in the framework of the twoHiggs doublet model. By employing generic flavoraligned Higgs–fermion Yukawa couplings, we propose an analysis that uses experimental data to determine whether flavor alignment is a consequence of a symmetry that is either exact or at most softly broken. We illustrate our proposal in two different scenarios based on a few 3 sigma (local) excesses observed by the ATLAS and CMS Collaborations in their searches for heavy scalars at Run 2 of the LHC.
January 2, 2023: The 2023 Particle Physics conference schedule has been posted to Section VIII of this website. Although not intended to be comprehensive, it covers many conferences that overlap with my research interests.
December 18, 2022: Today I posted a short note to Section VI of this website entitled Exponentiating the Lie algebra of the Lorentz group. In one method, the 4x4 Lorentz transformation matrix (for arbitrary boost and rotation parameters) is obtained by an explict computation of the exponential of the corresponding element of the SO(1,3) Lie algebra. In a second method, the fourvector nature of the spinor product with a free spacetime index is used to to obtain the matrix Λ, which only requires the exponentiation of 2x2 matrices. The two methods are shown to yield the same expression for Λ.
December 1, 2022: Cambridge University Press has announced the availability of a new textbook, entitled From Spinors to Supersymmetry, coauthored by Herbi K. Dreiner, Howard E. Haber and Stephen P. Martin, with an expected publication date of June 2023. Preorders are now available. For further details, check out this link.
November 30, 2022: Today, my paper in collaboration with Venus Keus and Rui Santos, entitled Peven, CPviolating Signals in ScalarMediated Processes, was pusblished in Physical Review D. A link to this paper can be found in Section II of this website.
November 17, 2022: I gave a talk at the IDTWG3Phys Open Meeting, which meets once each month to discuss topics assoicated with the ILC and other future e^{+}e^{} colliders. My talk entitled Peven, CPviolating Signals in ScalarMediated Processes is posted to Section VII of thisc website.
October 5, 2022: My contribution to the Proceedings of the 7th Symposium on Prospects in the Physics of Discrete Symmetries, DISCRETE 20202021, entitled A natural mechanism for a SMlike Higgs boson in the 2HDM without decoupling, was published today by the Proceedings of Science. The writeup of my plenary talk can be found in Section II of this website.
October 4, 2022: My contribution to the Septeber, 2022 CERN EP Newsletter of the EP Department, entitled Higgs Boson Physics  The View Ahead is now available on the arXiv. [PDF]
September 29, 2022: My contribution to the Septeber, 2022 CERN EP Newsletter of the EP Department, entitled Higgs Boson Physics  The View Ahead, was posted to https://epnews.web.cern.ch/content/higgsbosonphysicsviewahead. This was one of the contributions to the 10th anniversary of the Higgs boson celebrated this year at CERN.
August 30, 2022: My talk entitled Peven, CPviolating Signals in ScalarMediated Processes, given at the Workshop on MultiHiggs Models at the Instituto Superior Técnico in Lisbon, Portugal, has been posted to Section VII of this website.
August 10, 2022: The 2022 edition of the Review of Particle Physics, published today in Progress of Theoretical and Experimental Physics (PTEP), provides a comprehensive review of the field of particle physics and of related areas in cosmology. Topics include Higgs bosons, supersymmetry, big bang nucleosynthesis, probability, statistics, and accelerators and detectors. The latest update of my Supersymmetry Theory review in collaboration with Ben Allanach, which appears in the Review of Particle Physics, can be found in Section III of this website.
June 29, 2022: My talk entitled The anapole moment of a charged lepton in softlybroken Supersymmetric QED, given at the SUSY2022 conference held at the University of Ioannina in Ioannina, Greece, has been posted to Section VII of this website.
The talk introduces the properties of the anapole moment of a pointlike charged particle. A oneloop computation of the static anapole moment of the electron (or muon) in softlybroken supersymmetric QED is presented. Some subtelties encountered in extending this result to the full MSSM are discussed.
June 22, 2022: Today, my paper in collaboration with Venus Keus and Rui Santos, entitled Peven, CPviolating Signals in ScalarMediated Processes, was posted today on the arXiv. A link to this paper can be found in Section II of this website.
New sources of neutral scalarmediated CP violation that arise in extended Higgs sectors can originate in the Yukawa sector or in the structure of the scalar potential. Most treatments in the literature focus on CPviolating Yukawa interactions of neutral scalars, which is an example of Podd CP violation since it derives from the mixing of two Ceven operators of opposite sign P. In contrast, CPviolation arising from the scalar potential is Peven CPviolation, which can be observed by detecting three bosonic processes (suitably chosen) that are incompatible with the presence of a CPsymmetric scalar potential and/or vacuum. The discovery potential of such signals at various future multiTeV lepton (and γγ) colliders is assessed. The potential for detecting loopinduced Peven, CPviolating phenomena is also considered.
June 13, 2022: Today, Physical Review D posted an erratum to my paper in collaboration with João P. Silva, entitled Exceptional regions of the 2HDM parameter space that appeared a year ago in Physical Review D 103, 115012 (2021). A link to this paper and the erratum can be found in Section II of this website.
May 25, 2022: The review entitled Twocomponent spinor techniques and Feynman rules for quantum field theory and supersymmetry that was published in Physics Reports in 2010 has now been superseded by a new (slightly enhanced) version, which corrects all errors in the published review that have come to the attention of the three authors. This new version is now available on the arXiv, where it appears as version 6 of arXiv:0812.1594 [hepph]. Further details can be found in Section III of this website.
May 16, 2022: The writeup of my talk, entitled A natural mechanism for a SMlike Higgs boson in the 2HDM without decoupling, which was given at the DISCRETE 20202021 conference held in Bergen, Norway on December 3, 2021 has now appeared on the arXiv. [PDF]
Listings of older news items are stored here.
I. Research
The basic themes underlying my research program involve the study of: (i) the dynamics responsible for electroweak symmetry breaking; (ii) the theory and phenomenology of Higgs bosons; (iii) TeVscale supersymmetry as a framework for incorporating a weaklycoupled Higgs sector; (iv) the phenomenology of signals for new physics beyond the Standard Model at the Large Hadron Collider (LHC) and future colliders; and (v) connections of lowenergy phenomena with fundamental scales that lie beyond the TeV scale (e.g. lepton number violation and implications for neutrino masses).
The properties of the Higgs boson, which were discovered in 2012 at the Large Hadron Collider (LHC). have profound implications for the dynamics of electroweak symmetry breaking and the possible structure of new physics that may lie beyond the Standard Model (SM) of particle physics. For example, most approaches to physics beyond the SM include extended Higgs sectors. Present Higgs data suggest that the properties of one of the scalars of the Higgs sector (identified with the observed Higgs boson) must have properties that closely approximate that of the SM Higgs boson. This constraint in turn imposes important constraints on any SM extension. The twoHiggs doublet model (2HDM) is a convenient theoretical laboratory for the study of extended Higgs sectors. Indeed, the two doublet extended Higgs sector is a key component of the simplest supersymmetric extension of the SM.
The theoretical structure and phenomenological profile of the 2HDM has attracted much attention in recent years. Staring with a seminal paper in collaboration with Sacha Davidson published in 2005, my work has advocated the importance of a basisindependent treatment of the 2HDM. During the past few years, I have focused on the relevance of the socalled decoupling and alignment limits of the 2HDM in which one of scalars closely resembles the SM Higgs boson. The basisindependent technology provides a very powerful and simple framework for studying and interpreting these limits.
If new physics beyond the SM emerges at the LHC, it will be essential
to develop techniques for measuring new particle interaction strengths at
high energy colliders. By detecting relations among various independent
couplings, one can ascertain underlying symmetries and distinguish
among different theoretical interpretations of the new physics. For example,
with sufficient precision, it will be possible to provide convincing
evidence for or against a supersymmetric interpretation of new
fundamental physics phenomena. A precision Higgs program at the LHC
and at a future collider (such as the proposed International Linear Collider)
can also provide important clues as to what may lie beyond the Standard Model.
II. Publications
All my profession publications can be found here on the INSPIRE HEP database.
Most of my professional publications since 1992 are stored on the eprint archive hosted by arXiv.org. PDF and Postscript versions of the stored papers can be found here. My top cited publications according to Google Scholar can be found here.
Links to my most recent preprints:

Accommodating Hints of New Heavy Scalars in the Framework of the FlavorAligned TwoHiggsDoublet Model
Joseph M. Connell, Pedro Ferreira, Howard E. Haber. Feb 27, 2023. 48 pp.
SCIPP22/02
ePrint: arXiv: 2302.13697 [hepph]  PDF
Links to my 2022 publications:

Peven, CPviolating Signals in ScalarMediated Processes
Howard E. Haber, Venus Keus, Rui Santos. Jun 20, 2022. 58 pp.
DIASSTP2202 and SCIPP22/01
Published in Phys.Rev. D 106, 095038 (2022)
DOI: 10.1103/PhysRevD.106.095038
Published version: [PDF]
ePrint: arXiv:2206.09643 [hepph]  PDF
Links to my 2021 publications:

Exceptional regions of the 2HDM parameter space
Howard E. Haber, Joao P. Silva. Feb 14, 2021. 97 pp.
CFTP/21001 and SCIPP21/01
Published in Phys.Rev. D 103, 115012 (2021), Erratumibid. D105 (2022) 119902
DOI: 10.1103/PhysRevD.103.115012, 10.1103/PhysRevD.105.119902
Published version: [PDF] [Erratum]
ePrint: arXiv:2102.07136 [hepph]  PDF
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Abstract and PDF from arXiv.org; Journal Server  Phys.Rev

A natural mechanism for approximate Higgs alignment in the 2HDM
Patrick Draper, Andreas Ekstedt, Howard E. Haber. Nov 26, 2020. 51 pp.
SCIPP20/03
Published in JHEP 05 (2021) 235
DOI: 10.1007/JHEP05(2021)235
Published version: [PDF]
ePrint: arXiv:2011.13159 [hepph]  PDF
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Abstract and PDF from arXiv.org

A tale of three diagonalizations
Howard E. Haber. Sep 6, 2020. 27 pp.
Published in Int.J.Mod.Phys. A36 (2021) 2130002
DOI: 10.1142/S0217751X21300027
Published version: [PDF]
ePrint: arXiv:2009.03990 [hepph]  PDF
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Abstract and PDF from arXiv.org; Journal Server  Int.J.Mod.Phys.

Useful relations among the generators in the defining and adjoint representations of SU(N)
Howard E. Haber. Dec 31, 2019. 11 pp.
Published in SciPost Phys. Lect. Notes 21 (2021)
DOI: 10.21468/SciPostPhysLectNotes.21
Published version: [PDF]
ePrint: arXiv:1912.13302 [mathph]  PDF
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Abstract and PDF from arXiv.org
Links to my 2020 publications:

Basisindependent treatment of the complex 2HDM
Rafael Boto, Tiago V. Fernandes, Howard E. Haber, Jorge C. Romao, Joao P. Silva. Jan 6, 2020. 65 pp.
CFTP/19032 and SCIPP19/01
Published in Phys.Rev. D 101, 055023 (2020)
DOI: 10.1103/PhysRevD.101.055023
Published version: [PDF]
ePrint: arXiv:2001.01430 [hepph]  PDF
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Links to my 2019 publications:

Symmetries and Mass Degeneracies in the Scalar Sector
Howard E. Haber, O.M. Ogreid, P. Osland, M.N. Rebelo. Aug 26, 2018. 43 pp.
SCIPP18/04
Published in JHEP 01 (2019) 042
DOI: 10.1007/JHEP01(2019)042
Published version: [PDF]
ePrint: arXiv:1808.08629 [hepph]  PDF
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Links to my 2018 publications:

Heavy Higgs boson decays in the alignment limit of the 2HDM
Bohdan Grzadkowski, Howard E. Haber, Odd Magne Ogreid, Per Osland. Aug 4, 2018. 44 pp.
SCIPP18/05
Published in JHEP 12 (2018) 056
DOI: 10.1007/JHEP12(2018)056
Published version: [PDF]
ePrint: arXiv:1808.01472 [hepph]  PDF
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MultiHiggs doublet models: the Higgsfermion couplings and their sum rules
Miguel P. Bento, Howard E. Haber, J.C. Romao, Joao P. Silva. Aug 21, 2018. 24 pp.
SCIPP18/06
Published in JHEP 10 (2018) 143
DOI: 10.1007/JHEP10(2018)143
Published version: [PDF]
ePrint: arXiv:1808.07123 [hepph]  PDF
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Links to my 2017 publications:

MultiHiggs doublet models: physical parametrization, sum rules and unitarity bounds
Miguel P. Bento, Howard E. Haber, J.C. Romao, Joao P. Silva. Aug 30, 2017. 66 pp.
CFTP17005, SCIPP17/10
Published in JHEP 11 (2017) 095
DOI: 10.1007/JHEP11(2017)095
Published version: [PDF]
ePrint: arXiv:1708.09408 [hepph]  PDF
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The Impact of TwoLoop Effects on the Scenario of MSSM Higgs Alignment without Decoupling
Howard E. Haber, Sven Heinemeyer, Tim Stefaniak. Aug 15, 2017. 31 pp.
IFTUAMCSIC17074, SCIPP17/09
Published in Eur.Phys.J. C77 (2017) 742
DOI: 10.1140/epjc/s1005201752435
Published version: [PDF]
ePrint: arXiv:1708.04416 [hepph]  PDF
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Abstract and PDF from arXiv.org; Journal Server  Eur.Phys.J.C.

High scale flavor alignment in twoHiggs doublet models and its phenomenology
Stefania Gori, Howard E. Haber, Edward Santos. Mar 16, 2017. 39 pp.
SCIPP17/00
Published in JHEP 06 (2017) 110
DOI: 10.1007/JHEP06(2017)110
Published version: [PDF]
ePrint: arXiv:1703.05873 [hepph]  PDF
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The Light and Heavy Higgs Interpretation of the MSSM
Philip Bechtle, Howard E. Haber, Sven Heinemeyer, Oscar Stål, Tim Stefaniak, Georg Weiglein, Lisa Zeune. Aug 1, 2016. 63 pp.
BONNTH201606, DESY16151, IFTUAMCSIC16068, NIKHEF2016033, SCIPP1610
Published in Eur.Phys.J. C77 (2017) 67
DOI: 10.1140/epjc/s1005201645849
Published version: [PDF]
ePrint: arXiv:1608.00638 [hepph]  PDF
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Links to my 2016 publications:

Perturbation Theory in Supersymmetric QED: Infrared Divergences and Gauge Invariance
Michael Dine, Patrick Draper, Howard E. Haber, Laurel Stephenson Haskins. Jul 23, 2016. 28 pp.
SCIPP16/08
Published in Phys.Rev. D94 (2016) 095003
DOI: 10.1103/PhysRevD.94.095003
Published version: [PDF]
ePrint: arXiv:1607.06995 [hepth]  PDF
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Partially Natural Two Higgs Doublet Models
Patrick Draper, Howard E. Haber, Joshua T. Ruderman. May 10, 2016. 31 pp.
SCIPP16/06 and NSFKITP1604
Published in JHEP 06 (2016) 124
DOI: 10.1007/JHEP06(2016)124
Published version: [PDF]
ePrint: arXiv:1605.03237 [hepph]  PDF
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Scrutinizing the Alignment Limit in TwoHiggsDoublet Models. Part 2: m_{H}=125 GeV
Jérémy Bernon (LPSC, Grenoble), John F. Gunion (UC, Davis (main)), Howard E. Haber (UC, Santa Cruz, Inst. Part. Phys.), Yun Jiang (UC, Davis & Bohr Inst. & Copenhagen U.), Sabine Kraml (LPSC, Grenoble). Nov 11, 2015. 43 pp.
LPSC15274, UCD2015002, SCIPP15/13
Published in Phys.Rev. D93 (2016) 035027
DOI: 10.1103/PhysRevD.93.035027
Published version: [PDF]
ePrint: arXiv:1511.03682 [hepph]  PDF
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On the Alignment Limit of the NMSSM Higgs Sector
Marcela Carena, Howard E. Haber, Ian Low, Nausheen R. Shah, Carlos E. M. Wagner. Oct 30, 2015. 60 pp.
EFI1532, FERMILABPUB15407T, MCTP1515, SCIPP 15/12, WSUHEP1505
Published in Phys.Rev. D93 (2016) 035013
DOI: 10.1103/PhysRevD.93.035013
Published version: [PDF]
ePrint: arXiv:1510.09137 [hepph]  PDF
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Links to my 2015 publications:

New LHC Benchmarks for the CPconserving TwoHiggsDoublet Model
Howard E. Haber, Oscar Stål. July 15, 2015. 37 pp.
SCIPP1510
Published in Eur.Phys.J. C75 (2015) 491, Erratumibid. C76 (2016) 312
DOI: 10.1140/epjc/s100520153697x, 10.1140/epjc/s1005201641514
Published version: [PDF] [Erratum]
ePrint: arXiv:1507.04281 [hepph]  PDF
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Abstract and PDF from arXiv.org; Journal Server  Eur.Phys.J.C.; Journal Server  Erratumibid.

Scrutinizing the Alignment Limit in TwoHiggsDoublet Models. Part 1: m_{h} = 125 GeV
Jérémy Bernon, John F. Gunion, Howard E. Haber, Yun Jiang, Sabine Kraml. July 3, 2015. 48 pp.
LPSC15154, UCD2015001, SCIPP15/08
Published in Phys.Rev. D92 (2015) 075004
DOI: 10.1103/PhysRevD.92.075004
Published version: [PDF]
ePrint: arXiv:1507.00933 [hepph]  PDF
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Preserving the validity of the TwoHiggs Doublet Model up to the Planck scale
Pedro Ferreira (Lisbon, ISEL & Lisbon U., CFTC), Howard E. Haber, Edward Santos (UC, Santa Cruz). May 15, 2015. 36 pp.
SCIPP1507
Published in Phys.Rev. D92 (2015) 033003, Erratumibid. D94 (2016) 059903
DOI: 10.1103/PhysRevD.92.033003, 10.1103/PhysRevD.94.059903
Published version: [PDF] [Erratum]
ePrint: arXiv:1505.04001 [hepph]  PDF
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Complementarity Between NonStandard Higgs Boson Searches and Precision Higgs Boson Measurements in the MSSM
Marcela Carena, Howard E. Haber, Ian Low, Nausheen R. Shah, Carlos E. M. Wagner. Oct 18, 2014. 43 pp.
EFI1436, FERMILABPUB14392T, MCTP1437, SCIPP1416
Published in Phys.Rev. D91 (2015) 035003
DOI: 10.1103/PhysRevD.91.035003
Published version: [PDF]
ePrint: arXiv:1410.4969 [hepph]  PDF
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Links to Conference proceedings, 20132022:

A natural mechanism for a SMlike Higgs boson in the 2HDM without decoupling
Howard E. Haber. May 17, 2022. 15 pp.
Invited talk at DISCRETE 20202021: 7th Symposium on Prospects in the Physics of Discrete Symmetries, November 29December 3, 2021
Published in PoS(DISCRETE20202021)010
Published version: [PDF]
ePrint: arXiv:2205.07578 [hepph]  PDF
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Abstract and PDF from arXiv.org

Approximate Higgs alignment without decoupling
Howard E. Haber. May 15, 2018. 4 pp.
SCIPP 18/03.
Contribution to the Proceedings of the 53th Rencontres de Moriond, QCD Session, 1724 March 2018
ePrint: arXiv:1805.05754 [hepph]  PDF
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Future Higgs Studies: A Theorist's Outlook
Howard E. Haber. Jan 8, 2017. 12 pp.
Invited talk at Charged 2016: Prospects for Charged Higgs Discovery at Colliders, 36 October 2016
Published in PoS(CHARGED2016)029
Published version: [PDF]
ePrint: arXiv:1701.01922 [hepph]  PDF
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Abstract and Postscript and PDF from arXiv.org; INSPIRE HEP Conference database listing [Conference C161003.1  Contributions]; Journal Server  Proceedings of Science

The Higgs data and the Decoupling Limit
Howard E. Haber. Dec 31, 2013. 15 pp.
SCIPP1315.
Published in the Proceedings of the Toyama International Workshop on Higgs as a Probe of New Physics 2013 (HPNP2013) on eConf
ePrint: arXiv:1401.0152 [hepph]  PDF
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Abstract and Postscript and PDF from arXiv.org; INSPIRE HEP Conference database listing [Conference C130213.1  Contributions]
Thirteen selected publications published from 20032014 are listed below.

Probing wrongsign Yukawa couplings at the LHC and a future linear collider
P.M. Ferreira, John F. Gunion, Howard E. Haber, Rui Santos. Mar 19, 2014. 24 pp.
SCIPP1402, UCD20142
Published in Phys.Rev. D89 (2014) 115003
DOI: 10.1103/PhysRevD.89.115003
Published version: [PDF]
ePrint: arXiv:1403.4736 [hepph]  PDF
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Decoupling of the Righthanded Neutrino Contribution to the Higgs Mass in Supersymmetric Models
Patrick Draper, Howard E. Haber. Apr 22, 2013. 27 pp.
SCIPP1304.
Published in Eur.Phys.J. C73 (2013) 2522
DOI: 10.1140/epjc/s1005201325227
Published version: [PDF]
ePrint: arXiv:1304.6103 [hepph]  PDF
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Massdegenerate Higgs bosons at 125 GeV in the TwoHiggsDoublet Model.
P.M. Ferreira, Howard E. Haber, Rui Santos, Joao P. Silva. Nov 2012. 17 pp.
SCIPP1214.
Published in Phys.Rev. D87 (2013) 055009
DOI: 10.1103/PhysRevD.87.055009
Published version: [PDF]
ePrint: arXiv:1211.3131 [hepph]  PDF
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Grouptheoretic Condition for Spontaneous CP Violation.
Howard E. Haber (UC, Santa Cruz), Ze'ev Surujon (UC, Irvine). Jan 2012. 25 pp.
SCIPP1201, UCITR201201.
Published in Phys.Rev. D86 (2012) 075007
DOI: 10.1103/PhysRevD.86.075007
Published version: [PDF]
ePrint: arXiv:1201.1730 [hepph] PDF
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Basisindependent methods for the twoHiggsdoublet model III: The CPconserving limit, custodial symmetry, and the oblique parameters S, T, U.
Howard E. Haber, Deva O'Neil (UC, Santa Cruz). Nov 2010. 58 pp.
SCIPP1018.
Published in Phys.Rev. D83 (2011) 055017
DOI: 10.1103/PhysRevD.83.055017
Published version: [PDF]
ePrint: arXiv:1011.6188 [hepph]
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Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rev. 
Supersymmetric Monojets at the Large Hadron Collider.
Benjamin C. Allanach (Cambridge U., DAMTP), Sebastian Grab, Howard E. Haber (UC, Santa Cruz). Oct 2010. 42 pp.
DAMTP201083, SCIPP1016.
Published in JHEP 01 (2011) 138, Erratumibid. 07 (2011) 087, Erratumibid. 09 (2011) 027
DOI: 10.1007/JHEP01(2011)138, 10.1007/JHEP07(2011)087, 10.1007/JHEP09(2011)027
Published version: [PDF] [Erratum 1] [Erratum 2]
ePrint: arXiv:1010.4261 [hepph]
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Abstract and Postscript and PDF from arXiv.org; Journal Server  JHEP; Journal Server  Erratumibid.; Journal Server  Erratumibid. 
Generalized CP symmetries and special regions of parameter space in the twoHiggsdoublet model
P.M. Ferreira (Lisbon, ISEL & Lisbon, IST), Howard E. Haber (UC, Santa Cruz), Joao P. Silva (Lisbon, ISEL & Lisbon, IST). Feb 2009. 20 pp.
Published in Phys.Rev. D79 (2009) 116004
DOI: 10.1103/PhysRevD.79.116004
Published version: [PDF]
ePrint: arXiv:0902.1537 [hepph]  PDF
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Abstract and PDF from arXiv.org; Journal Server  Phys.Rev

Hard supersymmetrybreaking 'wrongHiggs' couplings of the MSSM.
Howard E. Haber, John D. Mason (UC, Santa Cruz). Nov 2007. 32 pp.
SCIPP0716.
Published in Phys.Rev. D77 (2008) 115011
DOI: 10.1103/PhysRevD.77.115011
Published version: [PDF]
ePrint: arXiv:0711.2890 [hepph]
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Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rev. 
Seesaw mechanism in the sneutrino sector and its consequences.
Athanasios Dedes (Durham U., IPPP & Ioannina U.), Howard E. Haber (UC, Santa Cruz), Janusz Rosiek (Durham U., IPPP & Warsaw, CFT). Jul 2007. 63 pp.
IPPP0716,CPT0732, SCIPP0710.
Published in JHEP 11 (2007) 059
DOI: 10.1088/11266708/2007/11/059
Published version: [PDF]
ePrint: arXiv:0707.3718 [hepph]
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Abstract and Postscript and PDF from arXiv.org; Journal Server  JHEP; JHEP Electronic Journal Server 
Basisindependent methods for the twoHiggsdoublet model. II. The Significance of tan beta.
Howard E. Haber, Deva O'Neil (UC, Santa Cruz, Inst. Part. Phys.). Feb 2006. 48 pp.
SCIPP0601.
Published in Phys.Rev. D74 (2006) 015018, Erratumibid. D74 (2006) 059905
DOI: 10.1103/PhysRevD.74.015018, 10.1103/PhysRevD.74.059905
Published version: [PDF] [Erratum]
ePrint: hepph/0602242  PDF
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Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rev. 
Conditions for CPviolation in the general twoHiggsdoublet model
John F. Gunion (UC, Davis (main)), Howard E. Haber (UC, Santa Cruz, Inst. Part. Phys.). Jun 2005. 46 pp.
Published in Phys.Rev. D72 (2005) 095002
SCIPP0416, UCD200429
DOI: 10.1103/PhysRevD.72.095002
Published version: [PDF]
ePrint: hepph/0506227  PDF
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Abstract Service
Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rev. 
Basisindependent methods for the twoHiggsdoublet model
Sacha Davidson (Durham U., IPPP & Lyon, IPN), Howard E. Haber (Durham U., IPPP & UC, Santa Cruz). Apr 2005. 45 pp.
IPPP0323, DCPT0346, SCIPP0415.
Published in Phys.Rev. D72 (2005) 035004, Erratumibid. D72 (2005) 099902
DOI: 10.1103/PhysRevD.72.035004, 10.1103/PhysRevD.72.099902
Published version: [PDF] [Erratum]
ePrint: hepph/0504050  PDF
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Abstract and Postscript and PDF from arXiv.org; Phys. Rev. D Server 
The CP conserving two Higgs doublet model: The Approach to the decoupling limit
John F. Gunion (UC, Davis), Howard E. Haber (UC, Santa Cruz). Jul 2002. 42 pp.
SCIPP0210.
Published in Phys.Rev. D67 (2003) 075019
DOI: 10.1103/PhysRevD.67.075019
Published version: [PDF]
ePrint: hepph/0207010  PDF
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Abstract and Postscript and PDF from arXiv.org; Phys. Rev. D Server
My two most highly cited papers (not including reviews) are listed below.

Can the mass of the lightest Higgs boson of the minimal supersymmetric model be larger than m(Z)?
Howard E. Haber, Ralf Hempfling (UC, Santa Cruz). Nov 1990. 12 pp.
Published in Phys.Rev.Lett. 66 (1991) 18151818
SCIPP9042
DOI: 10.1103/PhysRevLett.66.1815
Published version: [PDF]

Higgs Bosons in Supersymmetric Models. 1.
J.F. Gunion (UC, Davis), Howard E. Haber (UC, Santa Cruz & SLAC). Aug 1984. 111 pp.
Published in Nucl.Phys. B272 (1986) 1, Erratumibid. B402 (1993) 567569
SLACPUB3404.
DOI: 10.1016/05503213(86)903408; 10.1016/05503213(93)906537
Published version: [PDF] [Erratum]

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CERN Library Record ; SLAC Document Server; Journal Server  Nuclear Physics B; . Journal Server  Erratumibid.
Articles on the Higgs boson meant for a broader audience can be found below.

Higgs Boson Physics  The View Ahead
Howard E. Haber (UC, Santa Cruz). Oct 4, 2022. 8 pp.
Published in the September 2022 issue of the CERN EP Newsletter of the EP department
URL: https://epnews.web.cern.ch/content/higgsbosonphysicsviewahead
ePrint: arXiv:2210.00449 [hepph]  PDF
References  BibTeX  LaTeX(US)  LaTeX(EU)  Harvmac  EndNote
Abstract and PDF from arXiv.org

Viewpoint: Higgs Decay into Bottom Quarks Seen at Last
Howard E. Haber (UC, Santa Cruz). Sept 2018.
Published in Physics 11 (2018) 91
DOI: 10.1103/Physics.11.91
Published version: [PDF] 
Viewpoint: Homing in on the Higgs Boson
Howard E. Haber (UC, Santa Cruz). Mar 2012.
Published in Physics 5 (2012) 32
DOI: 10.1103/Physics.5.32
Published version: [PDF]
References  BibTeX  LaTeX(US)  LaTeX(EU)  Harvmac  EndNote
Journal Server  Physics 
The Higgs boson explained in 60 seconds
Howard E. Haber (UC, Santa Cruz). Aug. 2006.
Published in Symmetry Magazine, volume 3, issue 6 (August, 2006)
URL: https://www.symmetrymagazine.org/article/august2006/60secondshiggsboson
Published version: [PDF]
III. Published Reviews

Supersymmetry, Part I (Theory).
Benjamin C. Allanach (Cambridge U., DAMTP), Howard E. Haber (UC, Santa Cruz). Aug. 2021. 97 pp.

PDF
from the 2022 edition of the Review of Particle Physics
Particle Data Group Collaboration (R.L. Workman (George Washington University) et al.). August 2022. 2270 pp.
Published in PTEP 2022 (2022) 083C01
DOI: 10.1093/ptep/ptac097
Published version: [PDF]
Particle Data Group (PDG) webpage: [HTML]

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Link to Fulltext 
Higgsmass predictions in the MSSM and beyond
P. Slavich, S. Heinemeyer, E. Bagnaschi, H. Bahl, M. Goodsell, H.E. Haber, et al. Dec 31, 2020. 83 pp.
DESY 20229, DESY20229, IFTUAM/CSIC20184, FRPHENO2020021, KATP232020, MPP2020235, KATP232020, MPP2020235, P3H20086, TTK2053
Published in Eur.Phys.J. C81 (2021) 450
DOI: 10.1140/epjc/s10052021091982
Published version: [PDF]
ePrint: arXiv:2012.15629 [hepph]  PDF
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CERN Document Server; ADS Abstract Service; Link to Article from SCOAP3
Abstract and PDF from arXiv.org

Supersymmetric Theory and Models
Howard E. Haber, Laurel Stephenson Haskins. Dec 16, 2017. 144 pp.
SCIPP1711
Conference: C160606.15, pp. 355499 Proceedings
Published in Chapter 6 of TASI 2016: Anticipating the Next Discoveries in Particle Physics, edited by Rouven Essig and Ian Low (World Scientific, Singapore, 2018).
DOI: 10.1142/9789813233348_0006
ePrint: arXiv:1712.05926 [hepph]  PDF
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Abstract and PDF from arXiv.org

ILC Higgs White Paper
D.M. Asner, T. Barklow, C. Calancha, K. Fujii, N. Graf, H.E. Haber, A. Ishikawa, S. Kanemura, S. Kawada, M. Kurata et al.. Oct 23, 2013. 152 pp.
ePrint: arXiv:1310.0763 [hepph]  PDF
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Abstract and PDF from arXiv.org 
Geometric picture of generalizedCP and Higgsfamily transformations in the twoHiggsdoublet model.
P.M. Ferreira (Lisbon, ISEL & Lisbon, IST), Howard E. Haber (UC, Santa Cruz), M. Maniatis (Heidelberg U.), O. Nachtmann (Heidelberg U.), Joao P. Silva (Lisbon, ISEL & Lisbon, IST). Oct 2010. 31 pp.
SCIPP1015, HDTHEP101.
Published in Int.J.Mod.Phys. A26 (2011) 769808
DOI: 10.1142/S0217751X11051494
Published version: [PDF]
ePrint: arXiv:1010.0935 [hepph]
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Abstract and Postscript and PDF from arXiv.org; Journal Server  Int.J.Mod.Phys. 
Twocomponent spinor techniques and Feynman rules for quantum field theory and supersymmetry.
Herbi K. Dreiner, Howard E. Haber, Stephen P. Martin. Dec 2008. 246 pp.
BNTH200812, SCIPP0808.
Published in Phys.Rept. 494 (2010) 1196
DOI: 10.1016/j.physrep.2010.05.002
Published version: [PDF]
Corrected version of the published review with a few enhancements, with the mostly minus metric [PDF]
Corrected version of the published review with a few enhancements, with the mostly plus metric [PDF]
ePrint: arXiv:0812.1594 [hepph]
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Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rept. 
Higgs boson theory and phenomenology.
Marcela Carena (Fermilab), Howard E. Haber (UC, Santa Cruz). Aug 2002. 87 pp.
hepph/0208209,FERMILABPUB02114T, SCIPP0207.
Published in Prog.Part.Nucl.Phys. 50 (2003) 63152
DOI: 10.1016/S01466410(02)001771
Published version: [PDF]
ePrint: hepph/0208209
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Abstract and Postscript and PDF from arXiv.org; Journal Server  Prog.Part.Nucl.Phys.; ADS Abstract Service; CERN Library Record ; Fermilab Library Server (fulltext available); Science Direct; WORLDSCI 
Spin formalism and applications to new physics searches.Postscript and PDF from this website.
Howard E. Haber (UC, Santa Cruz & Santa Barbara, KITP). Apr 1994. 83 pp.
hepph/9405376, SCIPP9349, NSFITP9430, C930726.
Published in Stanford 1993, Spin structure in high energy processes, pp. 231272
Presented at Conference: C930726
ePrint: hepph/9405376
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Abstract from arXiv.org; KEK scanned document ; CERN Library Record

Lectures on electroweak symmetry breaking.PDF from this website.
Howard E. Haber (UC, Santa Cruz). Mar 1991. 136 pp.
SCIPP9106
Invited lectures given at Conference: C900603 (Boulder TASI 90:340475), p.340475

The Search for Supersymmetry: Probing Physics Beyond the Standard Model.
Howard E. Haber (UC, Santa Cruz & SLAC), Gordon L. Kane (Michigan U.). Jan 1984. 376 pp.
UMHETH8317, SCIPP8547.
Published in Phys.Rept. 117 (1985) 75263
DOI: 10.1016/03701573(85)900511
Published version: [PDF] [Erratum]
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Journal Server  Phys.Rept.; KEK scanned document
Webpage for Twocomponent spinor techniques and Feynman rules for quantum field theory and supersymmetry, maintained by Stephen P. Martin. Both the arXiv version and the Physics Reports version use the spacetime metric signature (+1,1,1,1), as is found for example in the field theory textbooks by Ramond, and by Peskin and Schroeder . However, many people including one of the authors (S.P. Martin) prefer the metric signature (1, +1, +1, +1), as is found for example in the textbooks by Weinberg, by Wess and Bagger, by Srednicki, and in Martin's Supersymmetry Primer. Here is a PDF file of v6 of our review with the (1, +1, +1, +1) metric convention, which should be identical in content in every other respect: DHMspinors_v6.pdf.
Both the (+1,1,1,1) and the (1, +1, +1, +1) metric versions were made from the same source files available from the arXiv. The choice of metric signature is implemented by simply changing a single character in the main LaTeX source file, namely the argument of line 20, with \def\signofmetric{0} corresponding to the (+1,1,1,1) metric and \def\signofmetric{1} to the (1, +1, +1, +1) metric. Note that the pdf file is produced with pdflatex.
The list of known corrections to the Physics Reports version as of May 2022 is here: DHM_corr_PhysicsReports.pdf.
These corrections have all been implemented (along with some
additional enhancements) and can be found in
version
6 of arXiv:0812.1594 (313 pages, May 2022).
Any subsequent corrections to version
6 of arXiv:0812.1594 will be posted on
https://www.niu.edu/spmartin/spinors/.
IV. Published Books
Coauthored books

From Spinors to Supersymmetry.
Herbi K. Dreiner, Howard E. Haber, Stephen P. Martin. Jun 2023. 1009 pp.Link to From Spinors to Supersymmetry at the Cambridge Univeristy Press webpage.

The Higgs Hunter's Guide.
John F. Gunion (UC, Davis), Howard E. Haber (UC, Santa Cruz), Gordon L. Kane (Michigan U.), Sally Dawson (Brookhaven). Jun 1989. 404 pp.
SCIPP89/13, UCD894, BNL41644.
Published in Front. Phys. 80 (2000) 1448
Link to The Higgs Hunter's Guide at the Perseus Books webpage. See also the Routledge (member of Taylor & Francis Group) webpage.
John F. Gunion (UC, Davis), Howard E. Haber (UC, Santa Cruz), Gordon L. Kane (Michigan U.), Sally Dawson (Brookhaven). Dec 1992. 5 pp.
hepph/9302272, SCIPP9258.
ePrint: hepph/9302272

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Abstract and Postscript and PDF from arXiv.org
Edited books

Particle physics and cosmology: The quest for physics beyond the standard model(s). Proceedings, Theoretical Advanced Study Institute, TASI 2002, Boulder, USA, June 328, 2002.
H.E. Haber, (ed.) (UC, Santa Cruz), A.E. Nelson, (ed.) (Washington U., Seattle). 2004. 892 pp.
ISBN9789812388926.
Prepared for Conference: C020602.1 (River Edge, USA: World Scientific (2004) 892 p)Link to Particle Physics and Cosmology webpage at World Scientific Publishing.

Electroweak symmetry breaking and new physics at the TeV scale.
T.L. Barklow, (ed.) (SLAC), S. Dawson, (ed.) (Brookhaven), H.E. Haber, (ed.) (UC, Santa Cruz), J.L. Siegrist, (ed.) (LBL, Berkeley). 1996.
Published in Singapore, Singapore: World Scientific (1996) 736 p. (Advanced series on directions in high energy physics. 16)Link to Electroweak Symmetry Breaking and New Physics at the TeV Scale webpage at World Scientific Publishing.

From The Planck Scale To The Weak Scale: Toward A Theory Of The Universe. Proceedings, Theoretical Advanced Study Institute In Elementary Particle Physics, Santa Cruz, Usa, June 23  July 18, 1986. Vol. 2.
H.E. Haber, (Ed.). 1987.
Published in SINGAPORE, SINGAPORE: WORLD SCIENTIFIC (1987) 497953Link to From the Planck Scale to the Weak Scale: Toward a Theory of the Universe webpage at World Scientific Publishing.

From The Planck Scale To The Weak Scale: Toward A Theory Of The Universe. Proceedings, Theoretical Advanced Study Institute In Elementary Particle Physics, Santa Cruz, Usa, June 23  July 18, 1986. Vol. 1.
H.E. Haber, (Ed.). 1987.
Published in SINGAPORE, SINGAPORE: WORLD SCIENTIFIC (1987) 1495Link to From the Planck Scale to the Weak Scale: Toward a Theory of the Universe webpage at World Scientific Publishing.
V. Teaching
 Spring, 2023 Physics 251 Group Theory and Modern Physics
 Winter, 2023 Physics 214 Electromagnetism II
 Winter, 2023 Physics 205 Introduction to Research "Research on the Theory of the Terascale" [PDF  Powerpoint]
 Spring, 2020 Physics 222 Quantum Field Theory III
 Fall, 2019 Physics 116A Mathematical Methods in Physics I
 Winter, 2018 Physics 215 Introduction to NonRelativistic Quantum Mechanics
 Fall 2016 Physics 217 Quantum Field Theory I
 Winter 2016 Physics 218 Quantum Field Theory II
 Fall, 2015 Physics 171 General Relativity, Black Holes, and Cosmology
 Fall, 2012 Physics 116C Mathematical Methods in Physics III
 Spring, 2012 Physics 216 Advanced Topics in NonRelativistic Quantum Mechanics
 Fall, 2009 Physics 139B Quantum Mechanics II
 Winter, 2009 Physics 5B Introduction to Physics II
 Winter, 2000 Physics 112 Thermodynamics and Statistical Mechanics
VI. Notes and other writings
 Exponentiating the Lie algebra of the Lorentz group [PDF  PS]
 Rational approximations to ln 2 short version: [PDF  PS]; long version: [PDF  PS]
 Generalized Functions for Physics [PDF  PS]
 Evaluating the finite part of the PassarinoVeltman function B_{0}(p^{2};m_{1}^{2},m_{2}^{2}) [PDF  PS]
 Evaluating the oneloop function arising in h→γγ [PDF  PS]
 Analytic formulae for the Feynman propagator in coordinate space [PDF  PS]
 A Tale of Three Diagonalizations [PDF  PS]
 Notes on the Matrix Exponential and Logarithm [PDF  PS]
 What is the group of conjugate symplectic matrices? [PDF  PS]
 Parameterization of real orthogonal antisymmetric matrices [PDF  PS]
 Toward a set of 2HDM benchmarks [PDF  PS]
 The eigenvalues of the quadratic Casimir operator and secondorder indices of a simple Lie algebra [PDF  PS]
 Notes on basis changes and matrix diagonalization [PDF  PS]
 Notes on the complex inverse trigonometric and hyperbolic functions and their principal values [PDF  PS]
 Electron wave function and mass renormalization in QED [PDF  PS]
 Proof of a trace inequality in matrix algebra [PDF  PS]
 Notes on the spontaneous breaking of SU(N) and SO(N) via a secondrank tensor multiplet [PDF  PS]
 Notes on antisymmetric matrices and the pfaffian [PDF  PS]
 Complex representation of scalar fields and the embedding of U(n) in SO(2n) [PDF  PS]
 The probability that a product of random numbers is less than a fixed constant [PDF  PS]
 Massless Majorana and Weyl fermions cannot be distinguished [PDF  PS]
VII. Talks at conferences, workshops and schools, 20042022
2022 Conferences and workshops
 The XXIX International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2022), at the University of Ioannina in Ioannina, Greece, June 29, 2022 The anapole moment of a charged lepton in softlybroken Supersymmetric QED [PDF]
 Workshop on MultiHiggs Models, at the Instituto Superior Técnico in Lisbon, Portugal, August 30, 2022 Peven, CPviolating Signals in ScalarMediated Processes [PDF]
 IDTWG3Phys Open Meeting, online via zoom, November 17, 2022 Peven, CPviolating Signals in ScalarMediated Processes [PDF]
2021 Conferences and workshops
 The 5th International Workshop on "Higgs as a Probe of New Physics Special Edition 2021" (HPNP2021), in Osaka, Japan (held online), March 27, 2021 Exceptional regions of the 2HDM parameter space [PDF]
 49th SLAC Summer Institute (SSI 2021), at SLAC, Stanford, CA USA (held online), August 27, 2021 Higgs Boson Physics—The View Ahead [PDF]
 Charged Higgs Online Workshop, August 30, 2021 Extended Higgs sector at present and future colliders [PDF]
 DISCRETE 20202021, December 3, 2021 A natural mechanism for a SMlike Higgs boson in the 2HDM without decoupling [PDF]
2020 Conferences and workshops
 All 2020 conferences and workshops at which I was scheduled to speak were canceled due to the Covid19 pandemic.
2019 Conferences and workshops
 Higgs Days at Santander 2019, in Santander, Spain, September 20, 2019 Future Perspectives (Part 2) [PDF]
 Scalars 2019, at the University of Warsaw in Warsaw, Poland, September 14, 2019 The Future of Particle PhysicsA Theorist’s Perspective [PDF]
 Scalars 2019, at the University of Warsaw in Warsaw, Poland, September 14, 2019 Approximate alignment without decoupling in the 2HDM naturally [PDF]
 Sorak Symposium reminiscence on Particle Physics, at NakSan Beach Hotel in Yang Yang, South Korea, August 15, 2019 The incomplete and biased history of the Higgs boson [PDF]
 Sorak Symposium reminiscence on Particle Physics, at NakSan Beach Hotel in Yang Yang, South Korea, August 15, 2019 Quo Vadis Higgs (or what the current Higgs data is trying to tell us) [PDF]
 7th RISE Collaboration Workshop: NonMinimalHiggs, in Helsinki Finland, May 27, 2019 Approximate alignment without decoupling in the 2HDM naturally [PDF]
 The 4th Toyama International Workshop on "Higgs as a Probe of New Physics 2019" (HPNP2019), in Osaka, Japan, February 18, 2019 Symmetries and Mass Degeneracies in the Scalar Sector [PDF]
Professional talks at conferences and workshops in previous years are stored here.
Schools and Pedagogical Lectures
 49th SLAC Summer Institute (SSI 2021), at SLAC, Stanford, CA USA (held online), August 27, 2021 Higgs Boson Physics—The View Ahead [PDF]
 Sorak Symposium reminiscence on Particle Physics, at NakSan Beach Hotel in Yang Yang, South Korea, August 15, 2019 The incomplete and biased history of the Higgsboson [PDF]
 Sorak Symposium reminiscence on Particle Physics, at NakSan Beach Hotel in Yang Yang, South Korea, August 15, 2019 Quo Vadis Higgs (or what the current Higgs data is trying to tell us) [PDF]
 The 46th SLAC Summer InstituteStandard Model at 50: Successes and Challenges, at SLAC in Stanford, CA USA, August 6, 2018 The woefully incomplete, unabashedly biased history of the Higgs Boson [PDF]
 PreSUSY 2016, preceding the 24th International Conference on Supersymmetry and Unification of Fundamental Interactions, Melbourne, Australia, 27 JuneJuly 8, 2016 SM and SUSY Higgs [Lecture 1  Lecture 2  Lecture 3]
 2016 Theoretical Advanced Study Institute (TASI 2016), 6 June1 July 2016, Supersymmetric Theories and Models [Lecture 1  Lecture 2  Lecture 3  Lecture 4]
 The 40th SLAC Summer Institute, The Electroweak Scale: Unraveling the Mysteries at the LHC, 23 July3 August 2012, Electroweak Symmetry Breaking (EWSB): The Basics [Lecture 1  Lecture 2]
 Idpasc Higgs School, Foz do Arelho, Portugal, 69 Sept 2011, Theory of Higgs Bosons: The Standard Model and Beyond [PDF]
 The Pre SUSY school, preceding the 18th International Conference on Supersymmetry and Unification of Fundamental Interactions, Bonn, Germany, 1921 August, 2010, Twocomponent Spinor Formalism: practical methods for treating Majorana fermions [PDF]
 Spaatind 2010: Nordic Conference in Particle Physics Spaatind 2010, Spaatind, Norway, 28 January 2010, Introduction to Electroweak Symmetry Breaking [PDF]; Twocomponent spinor formalism [PDF]
 Collider Phenomenology, DESY Theory Workshop, DESY Hamburg, Germany, 29 September1 October 2009 Introduction to Electroweak Symmetry Breaking [PDF]
 The CERNFermilab 2008 Hadron Collider Physics Summer School, Fermilab, August 1222, 2008, Higgs Boson Theory and Phenomenology [PDF]
 PreSUSY 2005, preceding the 13th International Conference on Supersymmetry and Unification of Fundamental Interactions, IPPP Durham, 29 JuneJuly 15, 2005 Practical methods for treating Majorana fermions [PDF]
 PSI Zuoz Summer School on Particle Physics, Zuoz, Switzerland, 1521 August, 2004 Introduction to Supersymmetry [Lecture 1 Lecture 2 Lecture 3 Lecture 4]
VIII. 2023 Conferences and workshops in particle physics
The 38th Advanced School in Theoretical Physics: QFT/String Theory in the times of COVID19, December 27, 2022January 5, 2023 at the Israel Institute for Advanced Studies (IIAS), the Hebrew University of Jerusalem, Israel
8th International Conference on "High Energy Physics in the LHC Era" (HEP2023), January 913, 2023 in Valparaíso, Chile
GGI Lectures on the Theory of Fundamental Interactions, January 927, 2023 at the Galileo Galilei Institute (GGI) for Theoretical Physics in Florence, Italy
New Directions in Theoretical Physics 4, January 1012, 2023 at the Higgs Centre for Theoretical Physics in Edinburgh, Scotland
Exotic Approaches to Naturalness, January 30February 3, 2023 at CERN in Geneva, Switzerland
P5 Town Hall at LBNL, February 2224, 2023, at Lawrence Berkeley National Laboratory in Berkeley, CA USA
Muon Collider Workshop, February 27March 10, 2023, at the Kavli Institute for Theoretical Physics at the University of California, Santa Barbara, CA USA
KUTS workshop: "Precision SUSY Higgs Mass Calculation Initiative", February 27March 1, 2023 at CERN in Geneva, Switzerland
P5 Town Hall at Fermilab and Argonne, March 2124, 2023 at Fermilab in Batavia, IL USA
Prospecting for New Physics through Flavor, Dark Matter, and Machine Learning, March 2631, 2023 at the Aspen Center for Physics in Aspen, CO USA
"Herbi Fest"Pursuing Physics Beyond the Standard Model: a symposium in honor of Herbi Dreiner on the occasion of his 60th birthday, March 2728, 2023 at the Bethe Center for Theoretical Physics (BCTP), University of Bonn, Germany
P5 Town Hall Meeting on the Future of High Energy Physics, April 1214, 2023 at Brookhaven National Laboratory in Upton, NY USA
Bay Area Particle Theory Seminar (BAPTS), April 14, 2023 at San Francisco State University (SFSU) in San Francisco, CA
American Physical Society April Meeting, April 1518, 2023, in Minneapolis, MN USA
MWDays 23 workshop, April 1720, 2023 at CERN in Geneva, Switzerland
American Physical Society April Meeting, April 2426, 2023, the virtual meeting
Corfu Workshop on Future Accelerators, April 2428, 2023 in Corfu, Greece
P5 Town Hall at SLAC, May 25, 2023, at the SLAC National Accelerator Laboratory in Menlo Park, CA USA
Phenomenology 2023 Symposium, May 810, 2023 at the University of Pittsburgh in Pittsburgh, PA USA
International Workshop on Future Linear Colliders (LCWS2023), May 1519, 2023 at SLAC National Accelerator Laboraotry in Menlo Park, CA USA
PLANCK 2023: 25th International Conference from the Planck Scale to the Electroweak Scale, May 2226, 2023 in Warsaw, Poland
Beyond the SM from Colliders to the Early Universe: a symposium in honor of Marcela Carena and Carlos Wagner on the occasion of their 60th birthdays, May 2830, 2023 at the University of Chicago (and Fermilab on May 30) in Chicago, IL USA
16th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology (RADCOR 2023), May 28June 2, 2023 at the Crieff Hydro Spa Hotel in Crieff, Scotland
Third EuCAPT Annual Symposium, May 31June 2, 2023 at CERN in Geneva Switzerland
The 6th International Workshop on "Higgs as a Probe of New Physics" (HPNP2023), June 59, 2023 at Osaka University, in Osaka, Japan
Theoretical Advanced Study Institute in ELementary Particle Physics (TASI 2023), June 530, 2023 at the University of Colorady in Boulder, CO USA
New Opportunities in High Energy Physics, June 11July 9, 2023 at the Aspen Center for Physics in Aspen, CO USA
Physics at TeV Colliders and Beyond the Standard Model (PhysTeV 2023), June 1230, 2023 at the Ecole de Physique des Houches in Les Houches, France
LoopFest XXI, June 2628, 2023 at SLAC National Accelerator Laboraotry in Menlo Park, CA USA
New Trends in HighEnergy Physics, July 17, 2023 at BITP in Kiev, Ukraine
PiTP 2023: "Understanding Confinement", July 1021, 2023 at the Institute for Advanced Study, Princeton, NJ. USA
preSUSY 2023: School on Supersymmetry and Unification of Fundamental forces, July 1014, 2023 at the University of Southampton in Southampton, UK
XII International Conference on New Frontiers in Physics, July 1023, 2023 at the Conference Center of the Orthodox Academy of Crete (OAC) in Kolymbari, Crete, Greece
HHH Workshop, July 1416, 2023 in Dubrovnik, Croatia
The XXX International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2023), July 1721, 2023 at the University of Southampton in Southampton, UK
The 31st International Symposium on Lepton Photon Interactions at High Energies, July 1721, 2023 in Melbourne, Australia
Traversing the Particle Physics PeaksPhenomenology to Formal, July 30August 20, 2023 at the Aspen Center for Physics in Aspen, CO USA
Amplitudes 2023 Summer School, July 31August 4, 2023 at CERN in Geneva, Sawitzerland
Amplitudes 2023 Conference, August 711, 2023 at CERN in Geneva, Sawitzerland
SLAC Summer Institute 2023: Machine Learning Across the Frontiers (SSI2023), August 718, 2023 at SLAC National Acceleratort Laboratory in Menlo Park, CA USA
The European Physical Society Conference on High Energy Physics (EPSHEP2023), August 2125, 2023 at the University of Hamburg in Hamburg, Germany
Corfu Workshop on the Standard Model and Beyond, August 27September 7, 2023 in Corfu, Greece
EFT Foundations and Tools 2023, August 28September 8, 2023 at the Mainz Institute for Theoretical Physics (MITP), Johannes Gutenberg University, in Mainz, Germany
Higgs Days at Santander 2023, September 48, 2023 in Santander, Spain
Hings Hunting 2023, September 1113, 2023 at Orsay and Paris, France
Scalars 2023, September 1316, 2023 at the University of Warsaw in Warsaw, Poland
Theory Challenges in the Precision Era of the Large Hadron Collider, August 28October 13, 2023 at the Galileo Galilei Institute for Theoretical Physics in Arcetri, Florence, Italy
2023 ECFA Workshop on Higgs/EW/Top factories, October 1113, 2023 in Paestum (Salerno), Italy,
Beyond the Standard Model: From Theory to Experiment (BSM2023), November 69, 2023 in Hurghada, Egypt
Higgs 2023, November 27December 1, 2023 in Beijing, China
42nd International Conference on High Energy Physics (ICHEP 2024), July 1724, 2024 in Prague, Czech Republic
Another compilation of upcoming particle physics conferences and workshops can be found here.
Listings of conferences and workshops from previous years are stored here.
IX. University Service
Faculty Perceptions of a UCSC Research Environment in Need of Restoration and Improvement, a report by Howard E. Haber and David M. Harrington, sponsored by the UCSC Committee on Research and contributed in May, 1998 to the Advisory Report of the Millennium Committee. [HTML]
University Committee on Research Policy (UCORP) 19951996 Public web page.
Should UC renew its contract with the Department of Energy (DOE) to manage the Lawrence Livermore National Laboratory and Los Alamos National Laboratory? The following web page documents the 1996 UC systemwide campus debate on this question. A town meeting was held on the UCSC campus on March 7, 1996 to discuss these issues.
X. Extracurricular Activities
Some of the physics students and I play softball in the UCSC intramural coed softball league. The fall season runs from early October to early December, and the spring season runs from early April to early June.
Our team, called ReEntry, is sponsored by the STARS organization on campus, which provides support and counseling for returning (or reentry) students to campus. You can follow our season exploits on the ReEntry Team Webpage.
XI. Physics, Math and Computer Links
Book Price comparisons
CERN links
LHC Performance and Statistics
LHC Programme Coordination web pages
ATLAS Online Luminosity [for more details click here]
CMS Online Luminosity [for more details click here]
CERN Physics results
ATLAS ExperimentPublic results
ATLAS Supersymmetry Physics results
CMS Supersymmetry Physics results
Electroweak and Higgs precision observables
LHC Higgs Cross Section Working Group (HXSWG)
SFitter Higgs coupling analysis
Higgs boson links
Precision SUSY Higgs Mass Calculation Initiative
LHC Higg Cross Section Working Group Twiki
Heavy Higgs and Beyond Standard Model subgroup of the HXSWG
Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables [Postscript  PDF]
Handbook of LHC Higgs Cross Sections: 2. Differential Distributions [Postscript  PDF]
Handbook of LHC Higgs Cross Sections: 3. Higgs Properties [Postscript  PDF]
Handbook of LHC Higgs Cross Sections: 4. Deciphering the nature of the Higgs sector [PDF]
High Energy Physics links
High Energy Physics Software and Collider Tools
International Linear Collider
American Linear Collider Working Group
International Linear Collider (ILC) homepage
CLIC detector and physics study (CLICdp)WG Physics Potential
Compact Linear Collider (CLIC)
Journals
Journal of Mathematical Physics
Physical Review Online Archive (PROLA)
Mathematics links
Mathematical Association of America
Meetings and Conferences organized by SCIPP Theory
HowieFest70, February 7, 2022 at the University of California, Santa Cruz, CA USA (held online)
SCIPP Reunion Theory Symposium, April 24, 2015 at the University of California, Santa Cruz
The search for Fundamental Physics: Higgs Bosons & Supersymmetry, A symposium in honor of Michael Dine and Howard Haber on the occasion of their 60th Birthdays, January 46, 2013
West Coast LHC Theory meeting, May 21, 2010
Confronting Challenges in Theoretical Physics, A Symposium in Honor of Tom Banks and Willy Fischler on the Occasion of their 60th Birthdays June 1516, 2009
RADCOR 2000, 5th International Symposium on Radiative Corrections, September 1115, 2000
Particle physics outreach
Physikshow at the University of Bonn
Particle physics jobs
Theoretical Particle Physics Jobs Rumor Mill
High Energy Physics Postdoc Rumor Mill
Physics blogs
AsymptotiaPhysics links
Division of Particles and fields of the APS
Professional publishers
Search links
Snowmass 2021 links
The Particle Physics Community Planning Exercise
Tevatron physics results
Tevatron New Phenomena & Higgs Working Group
TeX and LaTeX links
Selected extracts from the Comprehensive LaTeX Symbol List [PDF]
Using Imported Graphics in LaTeX and pdfLaTeX
XII. Miscellaneous links of interest
Humor
Piled Higher and Deeper (Ph.D. Comics)
Sports
National Basketball Association
Weather
XIII. Photographs
Photographs that I have taken at various physics conferences and workshops can be found at this link. Pictures of the ReEntry coed softball team can be found here.
haber@scipp.ucsc.edu
Last Updated: April 22, 2023