Howard E. Haber

Howard Haber
Office	ISB 326
Phone	1-831-459-4228
FAX	1-831-459-5265
Address	Department of Physics University of California 1156 High Street Santa Cruz, CA 95064 USA
Office Hours	Mondays 2--4 pm
e-mail	haber@scipp.ucsc.edu
alternate e-mail	haber@ucsc.edu

This is the professional website of Howard Haber, Professor of Physics at the University of California, Santa Cruz.

RECENT NEWS

May 16, 2018: The writeup of my talk given at the 53th Rencontres de Moriond, QCD and High Energy Interactions Session in La Thuile, Aosta Valley, Italy on March 20, 2018 has now appeared on the arXiv. [PDF]

March 20, 2018: My talk entitled Approximate Higgs alignment without decoupling, given at Rencontres de Moriond: QCD and High Energy Interactions, in La Thuile, Aosta Valley, Italy has been posted to Section VII of this website.

February 20, 2018: My talk entitled Mass Degeneracies in Extended Higgs Sectors, given at the TRIUMF Theory Workshop on New Physics and the Higgs at TRIUMF in Vacouver, Canada has been posted to Section VII of this website.

February 5, 2018: Notes on the Matrix Exponential and Logarithm have been posted to Section VI of this website.

January 23, 2018: My presentation to Physics 205 can be found in Section V of this website.

January 5, 2018: The 2018 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 19, 2017: A written version of my 2016 TASI Lectures entitled Supersymmetric Theories and Models was posted today as a preprint on the arXiv, thanks to a collaborative effort with my co-author Laurel Stephenson Haskins. A link to the written version of these lectures can be found in Section II of this website.

November 30, 2017: My talk entitled Replicating the Higgs Doublet, given at Scalars 2017 at the Unversity of Warsaw in Warsaw, Poland, has been posted to Section VII of this website.

November 15, 2017: My paper in collaboration with Miguel Bento, J.C. Romao and Joao Silva entitled Multi-Higgs doublet models: physical parametrization, sum rules and unitarity bounds was published in the Journal of High Energy Physics (JHEP). A link to this paper can be found in Section II of this website.

In this work, we examine the structure of a Higgs sector consisting of N Higgs doublets. We demonstrate the good features of the so-called charged Higgs basis, which allow us to explicitly identify the physical parameters of the model. We also derive simple forms for the couplings of the Higgs bosons and vector bosons for and some of the Goldstone boson interactions. These results are applied in the derivation of Higgs coupling sum rules and tree-level unitarity bounds that restrict the size of the quartic scalar couplings.

November 6, 2017: My paper in collaboration with Sven Heinemeyer and Tim Stefaniak, entitled The Impact of Two-Loop Effects on the Scenario of MSSM Higgs Alignment without Decoupling, was published in European Physical Journal C. A link to this paper can be found in Section II of this website.

In this work, we assesed the impact of the leading two-loop O(α_s h_t²) corrections to the Higgs alignment condition in the MSSM. These corrections are sizable and important in the relevant regions of parameter space and furthermore give rise to solutions of the alignment condition that are not present in the approximate one-loop description. The implications for phenomenologically viable regions of the MSSM parameter space were considered.

September 29, 2017: My talk entitled Alignment in Models of Extended Higgs Sectors, given at the NTU workshop: "Energy Frontier in Particle Physics: LHC and Future Colliders" at National Taiwan University in Taipei, Taiwan, has been posted to Section VII of this website.

September 12, 2017: My talk entitled Non-minimal Higgs sectors, given at the GGI Workshop: "Collider Physics and the Cosmos" at the Galileo Galilei Institute for Theoretical Physics in Arcetri, Florence, Italy, has been posted to Section VII of this website.

August 31, 2017: My paper in collaboration with Miguel Bento, J.C. Romao and Joao Silva entitled Multi-Higgs doublet models: physical parametrization, sum rules and unitarity bounds, was posted today on the arXiv. A link to this paper can be found in Section II of this website.

In this work, we examine the structure of a Higgs sector consisting of N Higgs doublets. We show that the interactions of the gauge bosons with the physical Higgs scalars and the Goldstone bosons are determined by an N x 2N matrix. This matrix depends on (N-1)(2N-1) real parameters that are associated with the mixing of the neutral Higgs fields in the so-called charged Higgs basis. Among these parameters, N-1 are unphysical (and can be removed by rephasing the physical charged Higgs fields), and the remaining 2(N-1)² parameters are physical. We also derive a particularly simple form for the cubic interactions and some of the quartic interactions of the Goldstone bosons with the physical Higgs scalars. These results are applied in the derivation of Higgs coupling sum rules and tree-level unitarity bounds that restrict the size of the quartic scalar couplings.

August 15, 2017: My paper in collaboration with Sven Heinemeyer and Tim Stefaniak, entitled The Impact of Two-Loop Effects on the Scenario of MSSM Higgs Alignment without Decoupling, was posted today on the arXiv. A link to this paper can be found in Section II of this website.

In the Higgs sector of the MSSM, alignment without decoupling is possible only in a parameter regime where there is an accidental cancellation of tree-level and radiative loop-level effects. In this paper we assess the impact of the leading two-loop O(α_s h_t²) corrections to the Higgs alignment condition in the MSSM. These corrections are sizable and important in the relevant regions of parameter space and furthermore give rise to solutions of the alignment condition that are not present in the approximate one-loop description. We provide a comprehensive numerical comparison of the alignment condition obtained in the approximate one-loop and two-loop approximations, and discuss its implications for phenomenologically viable regions of the MSSM parameter space.

July 16, 2017: In response to a question posed by Joao P. Silva, I have shown that an arbitrary 2n x 2n real orthogonal antisymmetric matrix can be parameterized by n(n−1) continuous angular parameters, and I ave provide an algorithm for constructing the general form for such a matrix in a set of notes entitled Parameterization of real orthogonal antisymmetric matrices. These notes have been posted to Section VI of this website.

June 23, 2017: My paper in collaboration with Stefania Gori and Edward Santos entitled High scale flavor alignment in two-Higgs doublet models and its phenomenology was published in the Journal of High Energy Physics (JHEP). A link to this paper can be found in Section II of this website.

In this paper, we considered the two Higgs doublet model (2HDM) in which flavor alignment is imposed at the Planck scale, resulting in the generation of Higgs-mediated FCNCs at the electroweak scale via renormalization group running. Using the current experimental bounds on flavor changing observables, constraints were derived on the aligned 2HDM parameter space, and its implications for Higgs boson phenomenology were analyzed.

June 15, 2017: A set of notes entitled Useful relations among the generators in the defining and adjoint representations of SU(N) has been posted to Section VI of this website.

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) TeV-scale supersymmetry as a framework for incorporating a weakly-coupled 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 low-energy phenomena with fundamental scales that lie beyond the TeV scale (e.g. lepton number violation and implications for neutrino masses).

The properties of the newly discovered Higgs boson 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 two-Higgs 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. My recent work has advocated the importance of a basis-independent treatment of the 2HDM. Recently, I have focused on the relevance of the so-called decoupling and alignment limits of the 2HDM in which one of scalars closely resembles the SM Higgs boson. The basis-independent 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 e-print 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 Conference proceedings, 2013--2018:

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, 17--24 March 2018
e-Print: arXiv:1805.05754 [hep-ph] | PDF
Detailed record
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, 3--6 October 2016
Published in PoS(CHARGED2016)029
Published version: [PDF]
e-Print: arXiv:1701.01922 [hep-ph] | PDF
Detailed record - Cited by 2 records
The Higgs data and the Decoupling Limit
Howard E. Haber. Dec 31, 2013. 15 pp.
SCIPP-13-15.
Published in the Proceedings of the Toyama International Workshop on Higgs as a Probe of New Physics 2013 (HPNP2013) on eConf
e-Print: arXiv:1401.0152 [hep-ph] | PDF
Detailed record - Cited by 27 records

Twelve selected publications published from 2003--2014 are listed below.

Probing wrong-sign 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.
SCIPP-14-02, UCD-2014-2
Published in Phys.Rev. D89 (2014) 115003
DOI: 10.1103/PhysRevD.89.115003
Published version: [PDF]
e-Print: arXiv:1403.4736 [hep-ph] | PDF
Detailed record - Cited by 80 records
Decoupling of the Right-handed Neutrino Contribution to the Higgs Mass in Supersymmetric Models
Patrick Draper, Howard E. Haber. Apr 22, 2013. 27 pp.
SCIPP-13-04.
Published in Eur.Phys.J. C73 (2013) 2522
DOI: 10.1140/epjc/s10052-013-2522-7
Published version: [PDF]
e-Print: arXiv:1304.6103 [hep-ph] | PDF
Detailed record - Cited by 7 records

Mass-degenerate Higgs bosons at 125 GeV in the Two-Higgs-Doublet Model.
P.M. Ferreira, Howard E. Haber, Rui Santos, Joao P. Silva. Nov 2012. 17 pp.
SCIPP-12-14.
Published in Phys.Rev. D87 (2013) 055009
DOI: 10.1103/PhysRevD.87.055009
Published version: [PDF]
e-Print: arXiv:1211.3131 [hep-ph] | PDF
Detailed record - Cited by 72 records

Group-theoretic Condition for Spontaneous CP Violation.
Howard E. Haber (UC, Santa Cruz), Ze'ev Surujon (UC, Irvine). Jan 2012. 25 pp.
SCIPP-12-01, UCI-TR-2012-01.
Published in Phys.Rev. D86 (2012) 075007
DOI: 10.1103/PhysRevD.86.075007
Published version: [PDF]
e-Print: arXiv:1201.1730 [hep-ph] PDF
Detailed record - Cited by 17 records

Basis-independent methods for the two-Higgs-doublet model III: The CP-conserving limit, custodial symmetry, and the oblique parameters S, T, U.
Howard E. Haber, Deva O'Neil (UC, Santa Cruz). Nov 2010. 58 pp.
SCIPP-10-18.
Published in Phys.Rev. D83 (2011) 055017
DOI: 10.1103/PhysRevD.83.055017
Published version: [PDF]
e-Print: arXiv:1011.6188 [hep-ph]
Detailed record - Cited by 106 records

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.
DAMTP-2010-83, SCIPP-10-16.
Published in JHEP 01 (2011) 138, Erratum-ibid. 07 (2011) 087, Erratum-ibid. 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]
e-Print: arXiv:1010.4261 [hep-ph]
Detailed record - Cited by 31 records

Geometric picture of generalized-CP and Higgs-family transformations in the two-Higgs-doublet model.
P.M. Ferreira (Lisbon, ISEL & Lisbon U., CFTC), Howard E. Haber (UC, Santa Cruz), M. Maniatis, O. Nachtmann (Heidelberg U.), Joao P. Silva (Lisbon, ISEL & Lisbon, IST). Oct 2010. 31 pp.
SCIPP-10-15, HD-THEP-10-1.
Published in Int.J.Mod.Phys. A26 (2011) 769-808
DOI: 10.1142/S0217751X11051494
Published version: [PDF]
e-Print: arXiv:1010.0935 [hep-ph]
Detailed record - Cited by 31 records

Hard supersymmetry-breaking 'wrong-Higgs' couplings of the MSSM.
Howard E. Haber, John D. Mason (UC, Santa Cruz). Nov 2007. 32 pp.
SCIPP-07-16.
Published in Phys.Rev. D77 (2008) 115011
DOI: 10.1103/PhysRevD.77.115011
Published version: [PDF]
e-Print: arXiv:0711.2890 [hep-ph]
Detailed record - Cited by 30 records

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.
IPPP-07-16,CPT-07-32, SCIPP-07-10.
Published in JHEP 11 (2007) 059
DOI: 10.1088/1126-6708/2007/11/059
Published version: [PDF]
e-Print: arXiv:0707.3718 [hep-ph]
Detailed record - Cited by 52 records

Basis-independent methods for the two-Higgs-doublet model. II. The Significance of tan beta.
Howard E. Haber, Deva O'Neil (UC, Santa Cruz). Feb 2006. 48 pp.
SCIPP-06-01.
Published in Phys.Rev. D74 (2006) 015018, Erratum-ibid. D74 (2006) 059905
DOI: 10.1103/PhysRevD.74.015018, 10.1103/PhysRevD.74.059905
Published version: [PDF] [Erratum]
e-Print: hep-ph/0602242 | PDF
Detailed record - Cited by 130 records

Basis-independent methods for the two-Higgs-doublet model
Sacha Davidson (Durham U., IPPP & Lyon, IPN), Howard E. Haber (Durham U., IPPP & UC, Santa Cruz). Apr 2005. 45 pp.
IPPP-03-23, DCPT-03-46, SCIPP-04-15.
Published in Phys.Rev. D72 (2005) 035004, Erratum-ibid. D72 (2005) 099902
DOI: 10.1103/PhysRevD.72.035004, 10.1103/PhysRevD.72.099902
Published version: [PDF] [Erratum]
e-Print: hep-ph/0504050 | PDF
- References | BibTeX | LaTeX(US) | LaTeX(EU) | Harvmac | EndNote | ADS Abstract Service
- Abstract and Postscript and PDF from arXiv.org; Phys. Rev. D Server
Detailed record - Cited by 256 records

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.
SCIPP-02-10.
Published in Phys.Rev. D67 (2003) 075019
DOI: 10.1103/PhysRevD.67.075019
Published version: [PDF]
e-Print: hep-ph/0207010 | PDF
- References | BibTeX | LaTeX(US) | LaTeX(EU) | Harvmac | EndNote | ADS Abstract Service
- Abstract and Postscript and PDF from arXiv.org; Phys. Rev. D Server
Detailed record - Cited by 559 records

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) 1815-1818
SCIPP-90-42
DOI: 10.1103/PhysRevLett.66.1815
Published version: [PDF]
- References | BibTeX | LaTeX(US) | LaTeX(EU) | Harvmac | EndNote
- ADS Abstract Service; CERN Library Record ; Phys. Rev. Lett. Server
Detailed record - Cited by 1471 records
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, Erratum-ibid. B402 (1993) 567-569
SLAC-PUB-3404.
DOI: 10.1016/0550-3213(86)90340-8; 10.1016/0550-3213(93)90653-7
Published version: [PDF] [Erratum]
- References | BibTeX | LaTeX(US) | LaTeX(EU) | Harvmac | EndNote
- CERN Library Record ; SLAC Document Server; Journal Server - Nuclear Physics B; . Journal Server - Erratum-ibid.
Detailed record - Cited by 1368 records

An article on the Higgs boson meant for a broader audience can be found below.

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

Detailed record - Cited by 1 record

The Higgs boson explained in 60 seconds

Howard E. Haber, Symmetry Magazine, volume 3, issue 6 (August, 2006) [HTML | PDF]

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III. Published Reviews

Supersymmetry, Part I (Theory).
Howard E. Haber (UC, Santa Cruz). Sept. 2017. 42 pp.
Review of Particle Physics (RPP)
Particle Data Group Collaboration (C. Patrignani ( Bologna U. & INFN, Bologna) et al.). 2016. 1808 pp.
Published in Chin.Phys. C40 (2016) no.10, 100001
DOI: 10.1088/1674-1137/40/10/100001
Published version: [PDF]
Detailed record - Cited by 3359 records
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.
e-Print: arXiv:1310.0763 [hep-ph] | PDF
Detailed record - Cited by 271 records

Two-component 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.
BN-TH-2008-12, SCIPP-08-08.
Published in Phys.Rept. 494 (2010) 1-196
DOI: 10.1016/j.physrep.2010.05.002
Published version: [PDF]
e-Print: arXiv:0812.1594 [hep-ph]
Detailed record - Cited by 260 records

Webpage for Two-component 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.]

Higgs boson theory and phenomenology.
Marcela Carena (Fermilab), Howard E. Haber (UC, Santa Cruz). Aug 2002. 87 pp.
hep-ph/0208209,FERMILAB-PUB-02-114-T, SCIPP-02-07.
Published in Prog.Part.Nucl.Phys. 50 (2003) 63-152
DOI: 10.1016/S0146-6410(02)00177-1
Published version: [PDF]
e-Print: hep-ph/0208209
Detailed record - Cited by 496 records

Spin formalism and applications to new physics searches.
Howard E. Haber (UC, Santa Cruz & Santa Barbara, KITP). Apr 1994. 83 pp.
hep-ph/9405376, SCIPP-93-49, NSF-ITP-94-30, C93-07-26.
Published in In *Stanford 1993, Spin structure in high energy processes* 231-272
Presented at Conference: C93-07-26
e-Print: hep-ph/9405376
Postscript and PDF from this website.

Detailed record - Cited by 79 records

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.
UM-HE-TH-83-17, SCIPP-85-47.
Published in Phys.Rept. 117 (1985) 75-263
DOI: 10.1016/0370-1573(85)90051-1
Published version: [PDF]
Detailed record - Cited by 4858 records

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IV. Published Books

Co-authored 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.
SCIPP-89/13, UCD-89-4, BNL-41644.
Published in Front. Phys. 80 (2000) 1-448
Detailed record - Cited by 800 records

Cited by 4033 Google Scholar records

Link to The Higgs Hunter's Guide at the Routledge (member of Taylor & Francis Group) webpage.

Errata for The Higgs hunter's guide.
John F. Gunion (UC, Davis), Howard E. Haber (UC, Santa Cruz), Gordon L. Kane (Michigan U.), Sally Dawson (Brookhaven). Dec 1992. 5 pp.
hep-ph/9302272, SCIPP-92-58.
e-Print: hep-ph/9302272

Detailed record - Cited by 155 records TopCite

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 3-28, 2002.
H.E. Haber, (ed.) (UC, Santa Cruz), A.E. Nelson, (ed.) (Washington U., Seattle). 2004. 892 pp.
ISBN-9789812388926.
Prepared for Conference: C02-06-02.1 (River Edge, USA: World Scientific (2004) 892 p)
Detailed record - Cited by 1 record

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)
Detailed record - Cited by 3 records

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.) (UC, Santa Cruz). 1987.
Published in SINGAPORE, SINGAPORE: WORLD SCIENTIFIC (1987) 497-953
Detailed record

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) 1-495
Detailed record

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V. Teaching

Winter, 2018 Physics 215 Introduction to Non-Relativistic Quantum Mechanics
Winter, 2018 Physics 205 Introduction to Research "Research on the Theory of the Terascale" [PDF | Powerpoint]
Spring, 2017 Physics 251 Group Theory and Modern Physics
Winter, 2017 Physics 214 Electromagnetism II
Fall 2016 Physics 217 Quantum Field Theory I
Winter 2016 Physics 218 Advanced Quantum Field Theory
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 Non-Relativistic Quantum Mechanics
Winter, 2011 Physics 116A Mathematical Methods in Physics I
Fall, 2009 Physics 139B Quantum Mechanics II
Winter, 2009 Physics 5B Introduction to Physics II
Winter, 2000 Physics 112 Thermodynamics and Statistical Mechanics

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VI. Notes and other writings

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]
Useful relations among the generators in the defining and adjoint representations of SU(N) [PDF | PS]
Toward a set of 2HDM benchmarks [PDF | PS]
The eigenvalues of the quadratic Casimir operator and second-order 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]
Proof of a trace inequality in matrix algebra [PDF | PS]
Notes on the spontaneous breaking of SU(N) and SO(N) via a second-rank 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]

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VII. Talks at conferences, workshops and schools, 2004--2018

2018 Conferences and workshops

Rencontres de Moriond: QCD and High Energy Interactions, in La Thuile, Aosta Valley, Italy, March 20, 2018 Approximate Higgs alignment without decoupling [PDF]

TRIUMF Theory Workshop on New Physics and the Higgs, at TRIUMF in Vancouver, BC, Canada, Feburary 20, 2018 Mass Degeneracies in Extended Higgs Sectors [PDF]

2017 Conferences and workshops

Scalars 2017, at the University of Warsaw, in Warsaw, Poland, November 30, 2017 Replicating the Higgs Doublet [PDF]

Energy Frontier in Particle Physics: LHC and Future Colliders, at National Taiwan University in Taipei, Taiwan, September 29, 2017 Alignment in Models of Extended Higgs Sectors [PDF]

GGI Workshop: "Collider Physics and the Cosmos", at the Galileo Galilei Institute for Theoretical Physics in Arcetri, Florence, Italy, September 12, 2017 Non-minimal Higgs sectors [PDF]

The 2nd HARMONIA Warsaw-Lisbon-Catania-Dresden meeting , at the University of Warsaw, in Warsaw, Poland, May 28, 2017 In search of natural Higgs alignment without decoupling in the 2HDM [PDF]

PLANCK 2017: 20th International Conference from the Planck Scale to the Electroweak Scale, in Warsaw, Poland, May 22, 2017 Alignment in extended Higgs models [PDF]

3rd RISE Collaboration Meeting: NonMinimalHiggs, in Toyama, Japan, March 6, 2017 High scale flavor-aligned 2HDM [PDF]

The 3rd Toyama International Workshop on "Higgs as a Probe of New Physics 2017" (HPNP2017), in Toyama, Japan, March 1, 2017 A Theorist's Outlook for Higgs physics beyond the Standard Model [PDF]

April APS Meeting 2017, in Washington, DC USA, Janurary 30, 2017 Beyond the Standard Model Higgs Boson [Powerpoint]

Professional talks at conferences and workshops in previous years are stored here.

Schools and Pedagogical Lectures

Pre-SUSY 2016, preceding the 24th International Conference on Supersymmetry and Unification of Fundamental Interactions, Melbourne, Austrailia, 27 June--July 8, 2016 SM and SUSY Higgs [Lecture 1 | Lecture 2 | Lecture 3]

2016 Theoretical Advanced Study Institute (TASI 2016), 6 June--1 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 July--3 August 2012, Electroweak Symmetry Breaking (EWSB): The Basics [Lecture 1 | Lecture 2]

Idpasc Higgs School, Foz do Arelho, Portugal, 6--9 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, 19--21 August, 2010, Two-component Spinor Formalism: practical methods for treating Majorana fermions [PDF]

Spaatind 2010: Nordic Conference in Particle Physics Spaatind 2010, Spaatind, Norway, 2--8 January 2010, Introduction to Electroweak Symmetry Breaking [PDF]; Two-component spinor formalism [PDF]

Collider Phenomenology, DESY Theory Workshop, DESY Hamburg, Germany, 29 September--1 October 2009 Introduction to Electroweak Symmetry Breaking [PDF]

The CERN--Fermilab 2008 Hadron Collider Physics Summer School, Fermilab, August 12--22, 2008, Higgs Boson Theory and Phenomenology [PDF]

Pre-SUSY 2005, preceding the 13th International Conference on Supersymmetry and Unification of Fundamental Interactions, IPPP Durham, 29 June--July 15, 2005 Practical methods for treating Majorana fermions [PDF]

PSI Zuoz Summer School on Particle Physics, Zuoz, Switzerland, 15--21 August, 2004 Introduction to Supersymmetry [Lecture 1 |Lecture 2| Lecture 3| Lecture 4]

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VIII. 2018 Conferences and workshops in particle physics

7th International conference in High Energy Physics in the LHC Era (Hep2018), January 8--12, 2018 at the Universidad Técnica Federico Santa María (UTFSM) in Valparaíso, Chile

Sid Drell Symposium, January 12, 2018 at SLAC, in Stanford, CA USA

2018 Zurich Phenomenology Workshop (ZPW2018), Flavours: light, heavy and dark, January 15--17, 2018, Zurich, Switzerland

CLIC Workshop 2018, January 22--26, 2018 at CERN in Geneva, Switzerland

Eighth KUTS Workshop, January 24--26, 2018 at LPTHE in Paris, France

TRIUMF Theory Workshop on New Physics and the Higgs, February 19--21, 2018 at TRIUMF in Vancouver, BC, Canada [Scientific Program]

Dark Matter 2018 (DM18), February 21--23, 2018 at UCLA in Los Angeles, CA USA

MITP Workshop: Probing Physics Beyond the Standard Model with Precision, February 26--March 9, 2018, at the Mainz Institute for Theoretical Physics, Mainz, Germany

32nd Rencontres de Physique de la Vallée d'Aoste, February 25--March 3, 2018, in La Thuile, Aosta Valley, Italy

Conference on Particles and Cosmology, March 5--9, 2018, atNanyang Technilogical University, Singapore

53nd Rencontres de Moriond EW 2018, March 10--17, 2018, in La Thuile, Aosta Valley, Italy

Bay Area Particle Theory Seminar (BAPTS), March 16, 2018 at San Francisco State University (SFSU) in San Francisco, CA

53rd Rencontres de Moriond: QCD and High Energy Interactions, March 17--24, 2018, in La Thuile, Aosta Valley, Italy

53rd Rencontres de Moriond: Cosmology 2018, March 17--24, 2018, in La Thuile, Aosta Valley, Italy

The 14th LHC HXSWG Workshop, March 26--27, 2018 at CERN in Geneva, Switzerland

Aspen Center for Physics Winter Conference on Particle Physics: The Particle Frontier, March 25--31, 2018, in Aspen, CO USA

Dark Matter @ LHC 2018, April 3--6, 2018, at the University of Heidelberg, Germany

HL/HE LHC Meeting, April 4--6, 2018 at Fermilab in Batavia, IL USA

American Physical Society April Meeting, April 14--17, 2018, in Columbus, OH USA An Alpine LHC Physics Summit (ALPS 2018), April 15--20, 2018, Obergurgl University Center in Tyrol, Austria

Higgs Effective Field Theory Workshop (HEFT 2018), April 16--19, 2018 at the The Mainz Institute for Theoretical Physics (MITP), Johannes Gutenberg University of Mainz, in Mainz, Germany

2nd LIO International Conference on Flavor Physics, "From Flavour to New Physics," April 18--20, 2018, at the Institut de Physique Nucléaire de Lyon (IPNL)in Lyon, France

The 2018 Phenomenology Symposium, May 7--9, 2018 at the University of Pittsburg, in Pittsburgh, PA USA

3rd Bahamas Advanced Study Institute and Conferences 2018 (BASIC 2018), May 13--19, 2018 in Stella Maris, Long Island, The Bahamas

The strong CP puzzle and axions, May 14--16, 2018 at LPSC in Grenoble, France

PLANCK 2018: 21th International Conference from the Planck Scale to the Electroweak Scale, May 21--25, 2018 in Bonn, Germany

MASS2018: Origin of Mass at the High Energy and Intensity Frontier, May 28--June 1, 2018 at he Centre for Cosmology and Particle Physics Phenomenology (CP3-Origins) at the University of Southern Denmark (SDU), Odense, Denmark

Asian Linear Collider Workshop 2018 (ALCW2018), May 28--June 1, 2018, in Fukuoka, Japan

Bethe Forum "Grand Unification in the Real World", May 29--June 1, 2018, at the Bethe Center for Theoretical Physics in Bonn, Germany

The 13th Conference on the Intersections of Particle and Nuclear Physics (CIPANP18), May 29--June 3, 2018, at the Hyatt Regency Indian Wells, in Palm Springs CA

2018 Theoretical Advanced Study Institute (TASI 2018), "Theory in an Era of Data", June 4--29, 2018 at the University of Colorado in Boulder, CO USA

24rd International Symposium on Particles, Strings and Cosmology (PASCOS 2018), June 4--8, 2018 in Cleveland, OH, USA

LHCP 2018, the 6th Annual Conference on Large Hadron Collider Physics, June 4--9, 2018, in Bologna, Italy

XXVIII International Conference on Neutrino Physics and Astrophysics (Neutrino 2018), June 4--9, 2018, in Heidelberg, Germany

14th International Workshop on Dark Side of the Universe 2018 (DSU 2018), June 25--29, 2018 at LAPTh, Annecy, France

7th Workshop on Flavour Symmetries and Consequences in Accelerators and Cosmology (FLASY 2018), July 2--5, 2018, at the University of Basel, Switzerland

ICHEP 2018, July 4--11, 2018 in Seoul, South Korea

7th International Conference on New Frontiers in Physics (ICNFP 2018), July 4--12, 2018, Kolymbari, Crete, Greece

Cargese 2018 International Summer School, Mass: From the Higgs to Cosmology, July 9--21, 2018, Institut d'Etudes Scientifiques de Cargese, France

2nd International Conference on Supersymmetric theories, dualities and deformations, July 16--18, 2018 at the Albert Einstein Center Institute for Theoretical Physics, in Bern, Switzerland

BOOST 2018, July 16--20, 2018 at the University of Paris, Jussieu Campus, in Paris, France

LoopFest XVII, July 16--20, 2018 at Michigan State University, in East Lansing, MI USA

17th Annual Prospects in Theoretical Physics (PiTP) summer school, "From Qubits to Spacetime," July 16--27, 2017 at the Intitute for Advanced Study (IAS) in Princeton, NJ USA

3rd Mainz Institute for Theoretical Physics graduate summer school, "Towards the Next Quantum Field Theory of Nature," July 16--August 3, 2018, in Mainz, Germany

CERN--Korea TH Institute, Physics at the LHC and Beyond, July 16--August 10, 2018 at CERN, Geneva, Switzerland

Higgs Hunting 2018, July 23--25, 2018 at Orsay-Paris, France

The 26rd International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2018), July 23--27, 2018 in Barcelona, Spain

The Flavor of New Physics in Collisions, July 29--August 26, 2018 at the Aspen Center for Physics in Aspen, CO USA

PSI Summer School, Particle Flavour Fever, August 12--18, 2018, Lyceum Alpinum, Zuoz, Switzerland

GGI Workshop: "Beyond Standard Model: Where do we go from here?", August 20--October 5, 2018 at the Galileo Galilei Institute for Theoretical Physics in Arcetri, Florence, Italy

Invisibles18 School, August 27--31, 2018, TUM Science & Study Center Raitenhaslach inBurghausen, Germany

Invisibles18 Workshop, September 3--7, 2018 in Karlsruhe, Germany

Workshop on Multi-Higgs Models, September 4--7, 2018 in Lisbon, Portugal

Higgs Days at Santander 2018, September 10--14, 2018 in Santander, Spain

Bay Area Particle Theory Seminar (BAPTS), October 12, 2018 at San Francisco State University (SFSU) in San Francisco, CA

Higgs Coupling Workshop 2018 (HC2018), November 26--30, 2018 in Tokyo, Japan

Another compilation of upcoming particle physics conferences and workshops can be found here.

Listings of conferences and workshops from previous years are stored here.

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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) 1995--1996 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.

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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 Re-Entry, is sponsored by the STARS organization on campus, which provides support and counseling for returning (or re-entry) students to campus. You can follow our season exploits on the Re-Entry Team Webpage.

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XI. Physics, Math and Computer Links

Book Price comparisons

AddALL book search

CERN links

Large Hadron Collider (LHC)

LHC Physics Centre at CERN

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 TWiki Portal

ATLAS Documents

ATLAS Experiment--Public results

ATLAS Higgs Physics results

ATLAS Supersymmetry Physics results

CMS Documents

CMS Physics results

CMS Higgs Physics results

CMS Supersymmetry Physics results

Electroweak and Higgs precision observables

LEP Electroweak Working Group

LEP Higgs Working Group

GFITTER

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

arXiv preprint server

High Energy Physics Software and Collider Tools

International Linear Collider

American Linear Collider Working Group

International Linear Collider (ILC) homepage

ILC Technical Design Report

CLIC detector and physics study (CLICdp)--WG Physics Potential

Journals

European Physics Journal C

JHEP

Journal of Mathematical Physics

Nuclear Physics B

Physical Review Online Archive (PROLA)

Physics Letters B

Physics Reports

Mathematica and Maple links

List of Mathematica Commands

Maple cheatsheet

Mathematics links

Mathematical Association of America

Table of integrals

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 4--6, 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 15--16, 2009

RADCOR 2000, 5th International Symposium on Radiative Corrections, September 11--15, 2000