This is the professional website of Howard Haber, Distinguished Professor of Physics at the University of California, Santa Cruz.
RECENT NEWS
August 30, 2021: My talk entitled Exceptional regions of the 2HDM parameter space, given at the Charged Higgs Online Workshop, has been posted to Section VII of this website.
August 27, 2021: My lecture entitled Higgs Boson Physics—The View Ahead was the final lecture of the 49th SLAC Summer Institute (SSI 2021). The slides of the lecture have been posted to Section VII of this website.
June 10, 2021: Today, my paper in collaboration with João P. Silva, entitled Exceptional regions of the 2HDM parameter space, was published in Physical Review D. A link to this paper can be found in Section II of this website.
May 25, 2021: Today, my paper in collaboration with Patrick Draper and Andreas Ekstedt, entitled A natural mechanism for approximate Higgs alignment in the 2HDM, was published in JHEP. A link to this paper can be found in Section II of this website.
May 25, 2011: Today, the report of the "Precision SUSY Higgs Mass Calculation Initiative", coauthored with Pietro Slavich et al., was published in the European Physics Journal C. A link to this paper can be found in Section III of this website.
May 21, 2021: Today, I was the speaker at the SLAC Theory seminar (which is still being held remotely in these pandemic times). The title of the talk that I gave was Adventures in NimaLand. A copy of the slides can be found here: [PDF]
March 27, 2021: My talk entitled Exceptional regions of the 2HDM parameter space, given at the 5th International Workshop on "Higgs as a Probe of New Physics" Special Edition 2021 (HPNP2021) hosted by Osaka University in Japan and held online, has been posted to Section VII of this website. The talk discusses some of the exception features of the softly broken GCP2symmetric 2HDM scalar potential, with some focus on the Higgs alignment limit and the custodial symmetry limit. Implications of the Yukawa sector are addressed at the end of this talk.
March 10, 2021: Today I posted a short note to Section VI of this website entitled Rational approximations to log 2. In this note, a sequence of rational numbers {r_{n}}, which yield approximations to log 2 that monotonically improve as n increases, is obtained by examining a suitably chosen sequence of integrals.
February 22, 2021: My pedagogical review entitled A tale of three diagonalizations was published today in the International Journal of Modern Physics A. A link to this paper can be found in Section II of this website.
In addition to the diagonalization of a normal matrix by a unitary similarity transformation, there are two other types of diagonalization procedures that sometimes arise in quantum theory applicationsthe singular value decomposition and the AutonneTakagi factorization. In these notes, each of these diagonalization procedures for the most general 2×2 matrices for which the corresponding diagonalization is possible is explicitly derived and analytical results in each of the three cases are presented.
February 16, 2021: My paper in collaboration with João P. Silva, entitled Exceptional regions of the 2HDM parameter space, was posted today on the arXiv. A link to this paper can be found in Section II of this website.
This paper provides a comprehensive treatment of the exceptional region of the 2HDM parameter space (dubbed the ERPS4) whose scalar potential parameters (using the standard parameterization) satisfy λ_{1}= λ_{2} and λ_{6}= λ_{7}. Such a scalar potential exhibits a generalized CP symmetry, called GCP2, that is softlybroken if m_{11}≠ m_{22} and/or m_{12} ≠ 0. Many of the special features of the ERPS4 are highlighted, as well as the properties of even more specialized cases within the ERPS4 framework in which additional constraints on the scalar potential parameters are imposed. Implications for CP violation, the Higgs alignment limit and custodial symmetry are examined.
January 20, 2021: My review entitled Useful relations among the generators in the defining and adjoint representations of SU(N) was published today in SciPost Physics Lecture Notes. A link to this paper can be found in Section II of this website.
There are numerous relations among the generators in the defining and adjoint representations of SU(N). These include Casimir operators, formulae for traces of products of generators, etc. Many of these relations are well known and others are more obscure. There are multiple sources for the various identities that are reviewed in this note, but there is no single reference that I am aware of that contains all of them. I have collected many of the relevant identities and assembled them in this short review.
January 19, 2021: My presentation to Physics 205 can be found in Section V of this website.
January 1, 2021: The 2021 Particle Physics conference schedule has been posted to Section VIII of the academic website. Although not intended to be comprehensive, it covers many conferences that overlap with my research interests.
December 31, 2020: The report of the "Precision SUSY Higgs Mass Calculation Initiative", coauthored with Pietro Slavich et al., has appeared on the arXiv today. A link to this paper can be found in Section II of this website.
Predictions for the Higgs masses are a distinctive feature of supersymmetric extensions of the Standard Model, where they play a crucial role in constraining the parameter space. The "Precision SUSY Higgs Mass Calculation Initiative" (KUTS) was launched in 2014 to provide a forum for discussions between the different groups involved in these efforts. This report aims to present a comprehensive overview of the current status of Higgsmass calculations in supersymmetric models, to document the many advances that were achieved in recent years and were discussed during the KUTS meetings, and to outline the prospects for future improvements in these calculations.
November 30, 2020: My paper in collaboration with Patrick Draper and Andreas Ekstedt, entitled A natural mechanism for approximate Higgs alignment in the 2HDM, was posted today on the arXiv. A link to this paper can be found in Section II of this website.
In this paper, we provide a mechanism for obtaining an approximate Higgs alignment suggested by the LHC Higgs data as a consequence of a softly broken global symmetry of the twoHiggs doublet model (2HDM) Lagrangian. However, this can only be accomplished if the Yukawa sector of the theory is extended. Thus, we propose an extended 2HDM with vectorlike top quark partners, where explicit mass terms in the top sector provide the source of the soft symmetry breaking of a generalized CP symmetry. In this way, we can realize approximate Higgs alignment without a significant finetuning of the model parameters. The implications of the current LHC bounds on vectorlike top quark partners for the success of our proposed scenario are explored.
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 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)
DOI: 10.1103/PhysRevD.103.115012
Published version: [PDF]
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, 20132018:

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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Abstract and PDF from arXiv.org

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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Abstract and PDF from arXiv.org; Journal Server  Eur.Phys.J.C.

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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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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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
References
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 Harvmac
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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
References
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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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 ADS Abstract Service
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.
Howard E. Haber (UC, Santa Cruz). Sept 2018.
Published in Physics 11 (2018) 91
DOI: 10.1103/Physics.11.91
Published version: [PDF]
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, Symmetry Magazine, volume 3, issue 6 (August, 2006)
[HTML  PDF]
III. Published Reviews

Supersymmetry, Part I (Theory).
Benjamin C. Allanach (Cambridge U., DAMTP), Howard E. Haber (UC, Santa Cruz). Aug. 2019. 37 pp.

PDF
from the 2020 edition of the Review of Particle Physics
Particle Data Group Collaboration (P.A. Zyla (LBL, Berkeley) et al.). 2020. 2093 pp.
Published in PTEP 2020 (2020) 083C01
DOI: 10.1093/ptep/ptaa104
Published version: [PDF]

References
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Link to Fulltext  PDF 
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) no.5, 450
DOI: 10.1140/epjc/s10052021091982
Published version: [PDF]
ePrint: arXiv:2012.15629 [hepph]  PDF
References
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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
References
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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
References
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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]
References
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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 (Bonn U.), Howard E. Haber (UC, Santa Cruz), Stephen P. Martin (Northern Illinois U. & Fermilab). Dec 2008. 246 pp.
BNTH200812, SCIPP0808.
Published in Phys.Rept. 494 (2010) 1196
DOI: 10.1016/j.physrep.2010.05.002
Published version: [PDF]
September 17, 2020 version with the mostly minus metric (to be resubmitted to the arXiv): [PDF]
September 17, 2020 version with the mostly plus metric (to be resubmitted to the arXiv): [PDF]
ePrint: arXiv:0812.1594 [hepph]
References
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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]
References
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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 v5 of our review with the (1, +1, +1, +1) metric convention, which should be identical in content in every other respect: DHMspinors_v5.pdf.
The list of known corrections to the Physics Reports version (September 2010) is here: DHM_corr_PhysicsReports.pdf.
The list of known corrections to the arXiv v5 (311 pages, August 2010) is here: DHM_corr_v5.pdf.
Both the (+1,1,1,1) and the (1, +1, +1, +1) metric versions were made
from the single LaTeX file
DHMspinors_v5.tex.
[If you are curious and want to LaTeX this for some reason, you may need
the style files found
here; other packages used should be in most standard LaTeX
distributions.
The choice of metric signature is implemented by simply changing
a single character in the LaTeX file, namely the
argument
of line 16, with \def\signofmetric{0} corresponding
to the (+1,1,1,1) metric and \def\signofmetric{1} to the
(1, +1, +1, +1) metric.]
IV. Published Books
Coauthored books

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 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

References
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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
 Winter, 2021 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
 Spring, 2019 Physics 251 Group Theory and Modern Physics
 Winter, 2018 Physics 215 Introduction to NonRelativistic Quantum Mechanics
 Winter, 2017 Physics 214 Electromagnetism II
 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
 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, 20042021
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]
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
 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. 2021 Conferences and workshops in particle physics
The 7th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE 2020), in Bergen, Norway, postponed until 2021
8th International Conference on High Energy Physics in the LHC Era (HEP2021), January 48, 2021 in Valparaiso, Chile, postponed until 2022
Muon Collider Forum Kickoff Meeting, January 27, 2021, Online
Unveiling Hidden Physics Beyond the Standard Model at the LHC, March 13, 2021, Online
Bay Area Particle Theory Seminar (BAPTS), March 5, 2021 at San Francisco State University (SFSU) in San Francisco, CA
New Physics from Precision at High Energies, March 8May 21, 2021, at the Kavli Institute for Theoretical Physics at the University of California, Santa Barbara, CA USA
La Thuile 2021Les Rencontres de Physique de la Vallee d"Aoste, March 911, 2021, Onine
The 2021 International Workshop on Future Linear Colliders (LCWS2021), March 1518, 2021, Online
BCTP Lecture Series on "New Approaches to Feynman Integrals", March 1519, 2021 at the Bethe Center for Theoretical Physics, in Bonn, Germany
55th Rencontres de Moriond 2021Electroweak Interactions & Unified Theories, March 2027, 2021, Online
The 5th International Workshop on "Higgs as a Probe of New Physics" Special Edition 2021 (HPNP2021), March 2527, 2021 at Osaka University, in Osaka, Japan
55th Rencontres de Moriond 2021QCD & High Energy Interactions, March 27April 3, 2021, Online
Beyond Standard Model: From Theory to Experiment (BSM2021), March 29April 2, 2021, an online meeting organized by The Center for Fundamental Physics (CFP) at Zewail City of Science and Technology and Faculty of Engineering and Natural Sciences at Sabancı University.
Future Collider Forum: Kiockoff Meeting, April 16, 2021, Online
April APS Meeting 2019, April 1720, 2021, Online
Standard Model at the LHC 2021, April 2630, 2021, Online
First EuCAPT Annual Symposium, May 57, 2021 at CERN in Geneva, Switzerland, held in fully remote mode
XIV International Conference on Interconnections between Particle Physics and Cosmology (PPC 2021), May 1721, 2021 at the University of Oklahoma, held in fully remote mode
Joint edition of the 15th International Symposium on Radiative Corrections (RADCOR) and the XIX Workshop on Radiative Corrections for the LHC and Future Colliders (LoopFest), May 1721, 2021, at Florida State University, Tallahassee, FL USA
"Big Questions in...Higgs Physics!" Colloquium>/a>, May 21, 2021, Online
The 2021 Phenomenology Symposium (PHENO 2021), May 2426, 2021 at the University of Pittsburgh in Pittsburgh, PA USA
IDTWG3Phys Kickoff Meeting & MiniSymposium on Muon g2, May 27, 2021, Online
Positivity and the Bootstrap, May 31June 2, 2021 at CERN, held in fully remote mode
(g2) Days 2021, May 31June 4, 2021, Online
Muon Collider Physics and Detector Workshop, June 24, 2021, Online
9th Edition of the Large Hadron Collider Physics Conference, June 712, 2021, at the International Conference Centre of Sorbonne Université (CICSU) in Paris, France
The 28th International Workshop on Weak Interactions and Neutrinos (WIN2021), June 712, 2021, at the University of Minnesota, held in fully remote mode
PEDHiggs kickoff meeting, June 18, 2021, Online
Sustainable HEP, June 2830, 2021, at CERN (virtually) in Geneva, Switzerland
Cosmology from Home 2021, July 516, 2021, online
LHC Higgs Working Group WG3 (BSM)Extended Higgs Sector subgroup meeting, July 67, 2021, at CERN (virtually) in Geneva Switzerland
Offshell2021—The virtual HEP conference on Run4@LHC, July 69, 2021, Online
2021 Meeting of the Division of Particle and Fields of the American Physical Society (DPF2021), July 1214, 2021, at Florida State University, held in fully remote mode
Dark Matter from the Laboratory to the Cosmos, July 25August 29, 2021 at the Aspen Center for Physics in Aspen, CO USA
EPSHEP Conference 2021, July 2630, 2021, Online
MIAPP Workshop on "Novel Hidden Sectors: From Colliders to Cosmology", August 227, 2021, at the Munich Institute for Astro and Particle Physics (MIAPP) in Munich, Germany
The 49th SLAC Summer Institute (SSI 2021), August 1627, 2021 at SLAC, Stanford, CA USA
The XXVIIIth International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2021), August 2328, 2021, at the Institute of Theoretical Physics, Chinese Academy of Sciences, China, held in fully remote mode
10th International Conference on New Frontiers in Physics (ICNFP 2021), August 23September 2, 2021 at the Conference Center of the Orthodox Academy of Creta (OAC) in Crete, Greece
Workshop on the Standard Model and Beyond, August 29September 8, 2021 at the Corfu Summer Institute in Corfu, Greece
Nu Intersections: Neutrino Physics at a Crossroad, August 29September 19, 2021 at the Aspen Center for Physics in Aspen, CO USA
Charged Higgs Online Workshop, August 3031, 2021, online
Energy Frontier WorkshopRestart, August 30September 3, 2021, online
Particles and Nuclei International Conference (PANIC 2021), August 30September 3, 2021 at the University of Lisbon in Lisbon, Portugal
Higgs Days at Santander 2021, September 610, 2021 in Santander, Spain
7th HARMONIA WarsawLisbonCataniaDresden Meeting, September 1324, 2021 in Warsaw, Poland
Higgs Hunting 2021, September 2022, 2021 at OrsayParis, France
DESY Theory WorkshopBright ideas for a dark universe, September 2124, 2021 at DESY in Hamburg, Germany
Snowmass Day, September 24, 2021, online
Higgs Pairs miniworkshop 2021, September 2930, 2021, online
Higgs 2021, October 1822, 2021, at Stony Brook University, in Stony Brook, NY, USA
ILC Workshop on Potential Experiments (ILCX2021), October 2629, 2021, online
14th Annual Helmholtz Alliance Workshop on "Physics at the Terascale", November 2324, 2021, to be held in hybrid mode
7th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE 20202021), November 29December 3, 2021, in Bergen, Norway
The 18th General Assembly of the LHC Higgs Cross Section Working Group (HXSWG), December 13, 2021 at CERN in Geneva, Switzerland
30th International Symposium on Lepton Photon Interactions at High Energies (LP2021), January 1014, 2022 at the University of Manchester in Manchester, UK
41th International Conference on High Energy Physics (ICHEP 2022), July 613, 2022, in Bologna, Italy
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]
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)
Mathematica and Maple links
Mathematics links
Mathematical Association of America
Meetings and Conferences organized by SCIPP Theory
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 from the last eleven years can be found here.
haber@scipp.ucsc.edu
Last Updated: September 23, 2021