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

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 entitled The Light and Heavy Higgs Interpretation of the MSSM 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.

June 9, 2017: In the Championship game vs. the Bad News Brewskis, Re-Entry claimed the Championship T-shirts with a riveting 15--11 victory. An eight run second inning provided a big lead early, and Re-Entry was able to withstand eight Bad News Brewskis runs over the last three innings, as their comeback fell short by four runs. With this win, Re-Entry claims a sweep with two straight softball championships over the 2016--2017 academic year. For further details, check out the UCSC Coed Softball Re-Entry Team Webpage.

May 22, 2017: My talk entitled Alignment in extended Higgs models, given at PLANCK 2017 in Warsaw, Poland, has been posted to Section VII of this website.

March 20, 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 posted today on the arXiv. A link to this paper can be found in Section II of this website.

One way to suppress Higgs-mediated flavor changing neutral currents (FCNCs) in the two Higgs doublet model (2HDM) is to demand that all Yukawa coupling matrices are diagonal when expressed in the basis of mass-eigenstate fermion fields. In this paper, we examine the 2HDM in which the flavor alignment condition is imposed at a very high energy scale. Renormalization group evolution then yields small neutral Higgs-mediated FCNCs at the electroweak scale, which can be constrained by experimental bounds on flavor changing observables. In the favored parameter region, the implications for Higgs boson phenomenology are analyzed.

March 6, 2017: My talk entitled High scale flavor-aligned 2HDM, given at the 3rd RISE Collaboration Meeting: NonMinimalHiggs in Toyama, Japan, has been posted to Section VII of this website.

March 1, 2017: My talk entitled A Theorist's Outlook for Higgs physics beyond the Standard Model, given at HPNP2017 in Toyama, Japan, has been posted to Section VII of this website.

February 3, 2017: My paper in collaboration with Philip Bechtle, Sven Heinemeyer, Tim Stefaniak, Oscar Stål, Georg Weiglein, and Lisa Zeune entitled The Light and Heavy Higgs Interpretation of the MSSM was published on my birthday in European Physical Journal C. A link to this paper can be found in Section II of this website.

In this paper, various MSSM interpretations of the Higgs signal at 125 GeV, in which the observed Higgs boson is identified with either the lightest or heaviest CP-even Higgs scalar of the MSSM. Regions close to the alignment limit without decoupling are still allowed and offer good prospects for upcoming LHC searches and searches at future colliders.

January 30, 2017: At the Maria Goeppert Mayer Award, Sakurai Prize Session of the April APS Meeting 2017, I gave a talk entitled Beyond the Standard Model Higgs Boson. The slides from the talk has been posted to Section VII of this website.

January 29, 2017: The APS prize and award winners were recognized at a ceremony held at the April APS Meeting 2017. The co-recipients of the J.J. Sakurai Prize for Theoretical Particle Physics received their awards during the APS Prizes and Awards Ceremonial Session.

January 23, 2017: My presentation to Physics 205 can be found in Section V of this website.

January 10, 2017: The official writeup of my talk given at the Sixth International Workshop on the Prospects for Charged Higgs Discovery at Colliders (CHARGED 2016) in Uppsala, Sweden on October 6, 2016 has now appeared on the arXiv. [Postscript | PDF]

January 2, 2017: The 2017 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 16, 2016: My talk entitled High scale flavor alignment in the 2HDM and its phenomenology, given at the Helsinki Higgs Forum in Helsinki, Finland, has been posted to Section VII 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 my recent conference proceedings:

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
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 24 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 71 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 70 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 82 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 30 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 29 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 48 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 114 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 225 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 498 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 1434 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 1348 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. 2015. 59 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 1552 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 235 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 222 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 483 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 73 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 4693 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 722 records

Cited by 3825 Google Scholar records

Link to The Higgs Hunter's Guide at the Westview Press 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 153 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 2 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

Spring, 2017 Physics 251 Group Theory and Modern Physics
Winter, 2017 Physics 214 Electromagnetism II
Winter, 2017 Physics 215 Introduction to Non-Relativistic Quantum Mechanics
Winter, 2017 Physics 205 Introduction to Research "Research on the Theory of the Terascale" [PDF | Powerpoint]
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

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--2017

2017 Conferences and workshops

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]

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]

2016 Conferences and workshops

Helsinki Higgs Forum, at the Helsinki Institute of Physics in Helsinki, Finland, December 16, 2016 High scale flavor alignment in the 2HDM and its phenomenology [PDF]

Higgs Couplings 2016, at SLAC, Stanford, CA USA, November 11, 2016 SUSY and the alignment limit [PDF]

Sixth International Workshop on the Prospects for Charged Higgs Discovery at Colliders (CHARGED 2016), in Uppsala, Sweden, October 6, 2016 Future Higgs Studies: A Theorist's Outlook [PDF]

Higgs Days at Santander 2016, in Santander, Spain, September 20, 2016 Alignment without decoupling in the MSSM [PDF]

Workshop on Multi-Higgs Models, in Lisbon, Portugal, September 6, 2016 Flavor violation via Planck scale alignment in the 2HDM [PDF]

Higgs Hunting 2016, in Paris, France, September 2, 2016 Higgs Hunting 2016 Theory Summary Talk [PDF]

The 24rd International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2016), in Melbourne, Australia, July 6, 2016 Extended Higgs sectors and the alignment limit [PDF]

KITP Workshop on the Experimental Challenges for the LHC Run II at the Kavli Institute for Theoretical Physics, Santa Barbara, CA, April 18, 2016 Revisiting the 2012 Higgs Wishlist [PDF]

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. 2017 Conferences and workshops in particle physics

1st FCC Physics Workshop, January 16--20, 2017 at CERN, Geneva, Switzerland

Sixth KUTS Workshop, January 23--25, 2017 in Aachen, Germany

American Physical Society April Meeting, January 28--31, 2017, in Washington, DC USA

The 3rd Toyama International Workshop on "Higgs as a Probe of New Physics 2017" (HPNP2017), March 1--5, 2017, in Toyama, Japan

Bay Area Particle Theory Seminar (BAPTS), March 3, 2017 at San Francisco State University (SFSU) in San Francisco, CA

From Strings to LHC IV, March 5--11, 2017, in Chalsa, India

Les Rencontres de Physique de la Vallée d'Aoste, "Results and Perspectives in Particle Physics", March 5--11, 2017, in La Thuile, Aosta Valley, Italy

3rd RISE Collaboration Meeting: NonMinimalHiggs, March 6--7, 2017 in Toyama, Japan

CLIC Workshop 2017, March 6--10, 2017 at CERN in Geneva, Switzerland

BASIC 2017: Bahamas Advanced Study Institute & Conferences, March 11--19, 2017 at Stella Maris, Long Island, in the Bahamas

52nd Rencontres de Moriond EW 2017, March 18--25, 2017, in La Thuile, Aosta Valley, Italy

Aspen Center for Physics Winter Conference on Particle Physics: Particle Physics in 2017: From the LHC to Dark Matter and Beyond, March 19--25, 2017, in Aspen, CO USA

Rencontres de Moriond QCD and High Energy Interactions, March 25--April 1, 2017, in La Thuile, Aosta Valley, Italy

DM@LHC 2017, April 3--5, 2017 at the University of California, Irvine, CA USA

Bethe Forum on Discrete Symmetries, Aprin 3--7, 2017 at the Bethe Center for Theoretical Physics, Bonn, Germany

New Physics Interpretations at the LHC 2, April 5--7, 2017 at Argonne National Laboratory, Lemont, IL USA

Alps 2017, an Alpine LHC Physics Summit, April 17--22, 2017 at the Obergurgl University Centre, in Tirol, Austria

Searches for long-lived particles at the LHC, April 24--26, 2017 at CERN in Geneva, Switzerland

Origin of Mass 2017: Cosmology and Dark Matter, May 1--4, 2017 at CP³-Origins, SDU, Odense, Denmark

The 2017 Phenomenology Symposium, May 8--10, 2017 at the University of Pittsburg, in Pittsburgh, PA USA

MC4BSM 2017, May 11--13, 2017, at SLAC in Stanford, CA USA

LHCP 2017, the 5th Annual Conference on Large Hadron Collider Physics, May 15--20, 2017, in Shanghai, China

Olivefest: Astroparticle Physics Looking Forward, May 17--19, 2017 at the university of Minnesota, Minneapolis, MN USA

PLANCK 2017: 20th International Conference from the Planck Scale to the Electroweak Scale, May 22--27, 2017 in Warsaw, Poland

FCC Week 2017, May 29--June 2, 2017 in Berlin, Germany

Bethe Forum on SUSY breakdown confronting LHC and other data, May 29--June 2, 2017 at the Bethe Center for Theoretical Physics in Bonn, Germany

Loopfest XVI, May 31--June 2, 2017 at Argonne National Laboatory, in Argonne, IL USA

FPCP 2017--Flavor Physics and CP Violation, June 5--9, 2017 in Prague, Czech Republic

Fermilab's 50th Anniversary Symposium, June 7--8, 2017 at Fermilab in Batavia, IL USA

Workshop on top physics at the LC 2017, June 7--9, 2017 at CERN in Geneva, Switzerland

2017 Theoretical Advanced Study Institute (TASI 2017), "Physics at the Fundamental Frontier", June 5--30, 2017 at the

Invisibles17 School, June 6--10, 2017 at Centre Loewenberg, Murten (Fribourg), Switzerland

Invisibles17 Workshop, June 12--16, 2017 in Zurich, Switzerland University of Colorado in Boulder, CO USA

MITP Workshop, "The TeV scale: a threshold to new physics?", June 12--July 7, 2017 at the Mainz Institute for Theoretical Physics, in Mainz, Germany

23rd International Symposium on Particles, Strings and Cosmology (PASCOS 2017), June 19--23, 2017 in Madrid, Spain

The 26th International Workshop on Weak Interactions and Neutrinos (WIN2017), June 19--24, 2017 at the University of California, Irvine, CA USA

Gordon Research Conference on Partice Physics, Pushing the Frontiers of Particle Physics During the LHC Run II Era, June 25--30, 2017 at the Hong Kong University of Science and Technology in Hong Kong, China

2017 Americas Workshop on Linear Colliders (AWLC17), June 26--30, 2017, at SLAC in Stanford, CA USA

16th Conference in the String Phenomenology Conference series (STRING PHENO 2017), July 3--7, 2017, at Virginia Tech, in Blacksburg, VA USA

The European Physical Society Conference on High Energy Physics (EPS-HEP), July 5--12, 2017, in Venice, Italy

The 13th Workshop of LHC Higgs Cross Section Working Group, July 13--14, 2017 at CERN in Geneva, Switzerland

BOOST 2017, July 16--21, 2017 at the University at Buffalo, The State University of New York, in Buffalo, NY USA

Seventh KUTS Workshop, July, 17--19, 2017 at KIT in Karlsruhe, Germany

Prospects in Theoretical Physics (PiTP) 2017, "Particle Physics at the LHC and Beyond", July 17--28, 2017 at the Intitute for Advanced Study (IAS) in Princeton, NJ USA

Higgs Hunting 2017, July 24--26, 2017 at Orsay-Paris, France

Reaching New Summits: The LHC at Full Strength, July 23--August 27, 2017 at the Aspen Center for Physics in Aspen, CO USA

DPF 2017, July 31--August 4, 2017 at Fermilab in Batavia, IL USA

TeV Particle Astrophysics (TeVPA 2017), August 7--11, 2017 at the Ohio State University in Columbus, OH USA

The 28th International Symposium on Lepton Photon Interactions at High Energies, August 7--12, 2017 in Guangzhou, China

The 45th SLAC Summer Institute, August 14--25, 2017 at SLAC, in Stanford, CA USA

Dark Matter, Neutrinos and their Connections (DAnuCo 2017), at the University of Southern Denmark, Odense, Denmark

GGI Workshop: "Collider Physics and the Cosmos", August 28--October 13, 2017 at the Galileo Galilei Institute for Theoretical Physics in Arcetri, Florence, Italy

Recent Developments in Neutrino Physics and Astrophysics, September 4--7, 2017 in Assergi and L'Aquila, Italy

Higgs Days at Santander 2017, September 18--22, 2017 in Santander, Spain

13th International Symposium on Radiative Corrections (RADCOR 2017), September 24--29, 2017 in St. Gilgen, Austria

XVII International Conference on Hadron Spectroscopy and Structure (HADRON 2017), September 25--29, 2017 in Salamanca, Spain

Energy Frontier in Particle Physics: LHC and Future Colliders, September 29--30, 2017 at National Taiwan University in Taipei, Taiwan

(Re)interpreting LHC new physics search results: tools and methods, October 16--18, 2017 at Fermilab in Batavia , IL USA

2017 International Workshop on Future Linear Colliders (LCWS2017), October 23--27, 2017 in Strasbourg, France

US LHC Users Association Meeting Wednesday. November 1--3 2017 at Fermilabo in Batavia, IL USA

Higgs Coupling Workshop 2017 (HC2017), November 6--10, 2017 in Heidelberg, Germany

2017 Terascale Annual Workshop, November 27--29, 2017 at DESY in Hamburg, Germany

Scalars 2017, November 30--December 3, 2017, in Warsaw, Poland

The 25rd International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2017), December 11--15, 2017 at TIFT in Mumbai, India

Beyond Standard Model: From Theory to Experiment(BSM-2017), December 17--21, 2017 in Hurghada, Egypt

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

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

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