This is the professional website of Howard Haber, Professor of Physics at the University of California, Santa Cruz.
RECENT NEWS
August 24, 2015: My talk entitled Partially Natural Two Higgs Doublet Models, given at the 23rd International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2015) has been posted to Section VII of this website.
August 3, 2015: My paper, in collaboration with Pedro Ferreira and Edward Santos, entitled Preserving the validity of the TwoHiggs Doublet Model up to the Planck scale, was published today in Physical Review D. This paper examines the constraints on the two Higgs doublet model (2HDM) due to the stability of the scalar potential and absence of Landau poles at energy scales below the Planck scale. The parameter regimes of the 2HDM with a 125 GeV SMlike Higgs boson that are stable and perturbative up to the Planck scale yield significant constraints on the heavy scalar spectrum. A link to this paper can be found in Section II of this website.
July 16, 2015: My paper in collaboration with Oscal Stål entitled New LHC Benchmarks for the CPconserving TwoHiggsDoublet Model was posted today on the arXiv. A link to this paper can be found in Section II of this website.
In this paper, we introduce a strategy to study the parameter space of the general, CPconserving, twoHiggsdoublet Model (2HDM) with a softly broken Z_{2}symmetry by means of a new hybrid basis of parameters consisting of the measured values of the mass of the observed Higgs boson and its coupling strength to vector boson pairs, the mass of the second CPeven Higgs boson, the ratio of neutral Higgs vevs, and three additional dimensionless parameters. We use these input parameters to perform numerical scans of the 2HDM parameter space, surveying the available parameter regions and analyzing the model constraints. Using these results, we define a number of benchmark scenarios that capture different aspects of nonstandard Higgs phenomenology that are of interest for future LHC Higgs searches.
July 6, 2015: My paper in collaboration with Jérémy Bernon, John F. Gunion, Yun Jiang and Sabine Kraml entitled Scrutinizing the Alignment Limit in TwoHiggsDoublet Models:Part 1: m_{h}=125 GeV was posted today on the arXiv. A link to this paper can be found in Section II of this website.
In this paper, we focus on the alignment regime of the 2HDM parameter regime where the couplings of the lighter of the two CPeven Higgs scalars are nearly indistinguishable from those of the Standard Model (SM) Higgs boson. We review the theoretical structure and analyze the phenomenological implications of the alignment limit without decoupling, in which the masses of the nonSMlike Higgs scalars are not significantly larger than the SMlike Higgs boson. For the numerical analysis, we perform scans of the 2HDM parameter space, taking into account all relevant preLHC constraints, the latest constraints from the measurements of the 125 GeV Higgs signal at the LHC, as well as the most recent limits coming from searches for other Higgslike states. Implications for Run 2 at the LHC, including expectations for observing the other scalar states, are considered.
July 1, 2015: An expanded version of the June 23 talk entitled, LHC Benchmarks for the CPconserving TwoHiggsDoublet Model was presented at an LIP seminar at the Laboratorio de Instrumentacao e Fisica Experimental de Particulas in Lisbon, Portugal. The slides from the seminar have been posted to Section VII of this website.
June 23, 2015: I gave a talk via vidyo to the 2HDM subgroup of the LHC Higgs Cross Section Working Group at CERN entitled LHC Benchmarks for the CPconserving 2HDM, which has been posted to Section VII of this website.
June 10, 2015: Version 2 of the paper entitled Preserving the validity of the TwoHiggs Doublet Model up to the Planck scale was reposted today on the arXiv. The revised version adds a number of references, corrects some typographical errors, and adds a clarifying footnote. A link to the revised paper can be found in Section II of this website.
June 9, 2015: My Ph.D. student Laura Fava passed her Ph.D. thesis defense. Congratulations Laura!!!
June 7, 2015: After many years of toil, we get to celebrate the new Ph.D.'s.
May 29, 2015: Team ReEntry's attempt to reclaim the
UCSC Intramurals Coed Softball Championship just falls short when
the umpires rule that the dramatic walkoff game winning two run
homerun by A.J. was foul. Unable to overcome that unfathomable call,
instead of celebrating the 54 victory, ReEntry was on the losing
end of a 43 heartbreaking loss to the Master Batters.
For more details, click on this
link.
May 28, 2015: My Ph.D. student Eddie Santos passed his Ph.D. thesis defense. Congratulations Eddie!!!
May 20, 2015: My talk entitled The Alignment Limit of the MSSM Higgs sectorthe Impact of Radiative Corrections, given at the Third KUTS Workshop at LPTHE in Paris, France has been posted to Section VII of this website.
May 18, 2015: My paper in collaboration with Pedro Ferreira and Edward Santos entitled Preserving the validity of the TwoHiggs Doublet Model up to the Planck scale was posted today on the arXiv. A link to this paper can be found in Section II of this website.
In this paper, we examined the constraints on the two Higgs doublet model (2HDM) due to the stability of the scalar potential and absence of Landau poles at energy scales below the Planck scale. Using basis independent techniques, we exhibited regimes of the 2HDM parameter space with a 125 GeV SMlike Higgs boson that is stable and perturbative up to the Planck scale. Implications for the heavy scalar spectrum were presented.
April 20, 2015: My talk entitled Partially Natural Two Higgs Doublet Models, given at the 4th MCTP Spring Symposium on Higgs Boson Physics in the Standard Model and Beyond has been posted to Section VII of this website.
March 10, 2015: The speaker list for the SCIPP Reunion Theory Symposium is now set. The Theory Symposium will take place on UCSC campus in ISB 102 from 26 pm on Friday April 24, 2015. For further details, check out the SCIPP Theory Symposium webpage.
March 6, 2015: Higgs boson a la carte? Check out the article in Fermilab Today that reports on my recent paper with Marcela Carena, Ian Low, Nausheen Shah and Carlos Wagner that was published last month in Physical Review D.
February 14, 2015: My talk entitled Constraints on the alignment limit of the MSSM Higgs sector, given at the The 2nd Toyama International Workshop on "Higgs as a Probe of New Physics 2015" (HPNP2015) has been posted to Section VII of this website. This talk is a shorter version of the seminar that I gave in January at the Lawrence Berkeley National Laboratory (with a few minor updates).
February 3, 2015: My paper, in collaboration with Marcela Carena, Ian Low, Nausheen Shah and Carlos Wagner, entitled Complementarity between nonstandard Higgs boson searches and precision Higgs boson measurements in the MSSM, was published on my birthday in Physical Review D. This paper discusses the viability of alignment without decoupling in the MSSM Higgs sector. Approximate alignment can be achieved via an accidental cancellation between treelevel and looplevel contributions. However precision Higgs data combined with the LHC search for heavier Higgs states that decay into τ^{+}τ^{} already places strong constraints on this scenario. A link to this paper can be found in Section II of this website.
January 28, 2015: I gave a talk at Lawrence Berkeley National Laboratory entitled Constraints on the alignment limit of the MSSM Higgs sector. The slides from the talk can be found here: [PDF]
January 18, 2015: An expanded version of my notes entitled Notes on antisymmetric matrices and the pfaffian have been posted to Section VI of this website.
January 12, 2015: My presentation to Physics 205 can be found in Section V of the academic website.
January 12, 2015: My talk entitled Higgs Physics and the ILC, given at the January 2015 SiD Workshop at SLAC has been posted to Section VII of this website.
January 7, 2015: The 2015 Particle Physics conference schedule has been posted to Section VIII of this website. Although not meant to be comprehensive, it covers many conferences that overlap with my research interests.
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 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 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. My recent work has advocated the importance of a basisindependent treatment of the 2HDM. Recently, 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.
Link to my two most recent preprints:

New LHC Benchmarks for the CPconserving TwoHiggsDoublet Model
Howard E. Haber, Oscar Stal. July 15, 2015. 37 pp.
SCIPP1510
ePrint: arXiv:1507.04281 [hepph]  PDF

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
ePrint: arXiv:1507.00933 [hepph]  PDF
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Abstract and PDF from arXiv.org
Links to my two most recent publications:

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
DOI: 10.1103/PhysRevD.92.033003
Published version: [PDF]
ePrint: arXiv:1505.04001 [hepph]  PDF
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Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rev.

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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ADS
Abstract Service
Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rev.
Link to my most recent conference proceedings:

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
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]
Twelve selected publications from the last twelve years 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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Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rev.

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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Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rev.

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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Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rev.

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 1101 (2011) 138, Erratumibid. 1107 (2011) 087, Erratumibid. 1109 (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. 
Geometric picture of generalizedCP and Higgsfamily transformations in the twoHiggsdoublet 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.
SCIPP1015, HDTHEP101.
Published in Int.J.Mod.Phys. A26 (2011) 769808
DOI: 10.1142/S0217751X11051494
Published version: [PDF]
ePrint: arXiv:1010.0935 [hepph]
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Abstract and Postscript and PDF from arXiv.org; Journal Server  Int.J.Mod.Phys. 
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 0711 (2007) 059
DOI: 10.1088/11266708/2007/11/059
Published version: [PDF]
ePrint: arXiv:0707.3718 [hepph]
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Abstract and Postscript and PDF from arXiv.org; Journal Server  JHEP; JHEP Electronic Journal Server 
Basisindependent methods for the twoHiggsdoublet model. II. The Significance of tan beta.
Howard E. Haber, Deva O'Neil (UC, Santa Cruz). Feb 2006. 48 pp.
SCIPP0601.
Published in Phys.Rev. D74 (2006) 015018, Erratumibid. D74 (2006) 059905
DOI: 10.1103/PhysRevD.74.015018, 10.1103/PhysRevD.74.059905
Published version: [PDF] [Erratum]
ePrint: hepph/0602242  PDF
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Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rev. 
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 References  BibTeX  LaTeX(US)  LaTeX(EU)  Harvmac  EndNote  ADS Abstract Service
 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 References  BibTeX  LaTeX(US)  LaTeX(EU)  Harvmac  EndNote  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]
 References  BibTeX  LaTeX(US)  LaTeX(EU)  Harvmac  EndNote
 CERN Library Record ; SLAC Document Server; Journal Server  Nuclear Physics B; . Journal Server  Erratumibid.
An article on the Higgs boson meant for a broader audience can be found below.
Howard E. Haber (UC, Santa Cruz). Mar 2012.
Published in Physics 5 (2012) 32
DOI: 10.1103/Physics.5.32
Published version: [PDF]
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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).
Howard E. Haber (UC, Santa Cruz). Oct. 2013. 55 pp.

PDF
from the 2014 edition of the
Particle Data Group Collaboration (K A Olive (Minnesota U.) et al.). 2014. 1675 pp.
Published in Chin.Phys. C38 (2014) 090001
DOI: 10.1088/16741137/38/9/090001
Published version: [PDF]

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CERN Document Server  PDF from Journal Server  PDF from the Particle Data Group website

ILC Higgs White Paper
D.M. Asner, T. Barklow, C. Calancha, K. Fujii, N. Graf, H.E. Haber, A. Ishikawa, S. Kanemura, S. Kawada, M. Kurata et al.. Oct 23, 2013. 152 pp.
ePrint: arXiv:1310.0763 [hepph]  PDF
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Abstract and PDF from arXiv.org 
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]
ePrint: arXiv:0812.1594 [hepph]
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Abstract and Postscript and PDF from arXiv.org; Journal Server  Phys.Rept. 
Higgs boson theory and phenomenology.
Marcela Carena (Fermilab), Howard E. Haber (UC, Santa Cruz). Aug 2002. 87 pp.
hepph/0208209,FERMILABPUB02114T, SCIPP0207.
Published in Prog.Part.Nucl.Phys. 50 (2003) 63152
DOI: 10.1016/S01466410(02)001771
Published version: [PDF]
ePrint: hepph/0208209
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Abstract and Postscript and PDF from arXiv.org; Journal Server  Prog.Part.Nucl.Phys.; ADS Abstract Service; CERN Library Record ; Fermilab Library Server (fulltext available); Science Direct; WORLDSCI 
Spin formalism and applications to new physics searches.Postscript and PDF from this website.
Howard E. Haber (UC, Santa Cruz & Santa Barbara, KITP). Apr 1994. 83 pp.
hepph/9405376, SCIPP9349, NSFITP9430, C930726.
Published in In *Stanford 1993, Spin structure in high energy processes* 231272
Presented at Conference: C930726
ePrint: hepph/9405376
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Abstract from arXiv.org; KEK scanned document ; CERN Library Record

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]
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Journal Server  Phys.Rept.; KEK scanned document ; pdgLive (measurements quoted by PDG) ; Science Direct
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 webpage at the Perseus Books Group.
You can also order an ebook version of the Higgs Hunter's Guide from ebooks.com. A limited preview is available.
John F. Gunion (UC, Davis), Howard E. Haber (UC, Santa Cruz), Gordon L. Kane (Michigan U.), Sally Dawson (Brookhaven). Dec 1992. 5 pp.
hepph/9302272, SCIPP9258.
ePrint: hepph/9302272

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Abstract and Postscript and PDF from arXiv.org
Edited books

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

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

From The Planck Scale To The Weak Scale: Toward A Theory Of The Universe. Proceedings, Theoretical Advanced Study Institute In Elementary Particle Physics, Santa Cruz, Usa, June 23  July 18, 1986. Vol. 2.
H.E. Haber, (Ed.) (UC, Santa Cruz). 1987.
Published in SINGAPORE, SINGAPORE: WORLD SCIENTIFIC (1987) 497953 
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) 1495
V. Teaching
 Fall, 2015 Physics 171 General Relativity, Black Holes, and Cosmology
 Spring, 2015 Physics 251 Group Theory and Modern Physics
 Winter 2015 Physics 218 Advanced Quantum Field Theory
 Winter, 2015 Physics 205 Introduction to Research "Research on the Theory of the Terascale" [PDF  Powerpoint]
 Winter, 2013 Physics 214 Electromagnetism II
 Fall, 2012 Physics 116C Mathematical Methods in Physics III
 Spring, 2012 Physics 216 Advanced Topics in NonRelativistic 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
VI. Notes and other writings
 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]
 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, 20042015
2015 Conferences and workshops
 The 23rd International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2015), at Granlibakken Conference Center & Lodge, Tahoe City, CA, August 24, 2015 Partially Natural Two Higgs Doublet Models [PDF]

2HDM
Benchmark Discussion,
CERN, June 23, 2015
LHC Benchmarks for the CPconserving 2HDM
[PDF]
An expanded version of this talk was given on July 1, 2015 at an LIP Seminar at Laboratorio de Instrumentacao e Fisica Experimental de Particulas in Lisbon, Portugal [PDF]  Third KUTS Workshop at LPTHE in Paris, France, May 20, 2015 The Alignment Limit of the MSSM Higgs sectorthe Impact of Radiative Corrections [PDF]
 The 4th MCTP Spring Symposium on Higgs Boson Physics in the Standard Model and Beyond at the University of Michigan, Ann Arbor, MI, April 20, 2015 Partially Natural Two Higgs Doublet Models [PDF]
 The 2nd Toyama International Workshop on "Higgs as a Probe of New Physics 2015" (HPNP2015), Toyama, Japan, February 14, 2015 Constraints on the alignment limit of the MSSM Higgs sector [PDF]
 SiD Workshop, January 2015 at SLAC, January 12, 2015 Higgs Physics and the ILC [PDF]
2014 Conferences and workshops
 IFT Program on Physics Challenges in the face of LHC14, Madrid, Spain, September 25, 2014 Constraints on the alignment limit of the MSSM Higgs sector [PDF]
 IFT Program on Physics Challenges in the face of LHC14, Madrid, Spain, September 23, 2014 Motivations for a stable scalar in an extended Higgs sector [PDF]
 Higgs Days at Santander 2014, Santander, Spain, September 9, 2014 2HDM BenchmarksTheoretical Framework [PDF]
 Workshop on MultiHiggs Models, Lisbon, Portugal, September 2, 2014 Constraints on the alignment limit of the MSSM Higgs sector [PDF]

SUSY 2014: The 22nd International Conference on Supersymmetry and Unification of Fundamental Interactions, Manchester, UK, July 22, 2014 Can the Hbb coupling be equal in magnitude to its SM value but opposite in sign? [PDF]

Workshop of the LHC Higgs Cross Section Working Group, CERN, June 13, 2014 2HDMReport on recent activities [PDF]

Americas Workshop on Linear Colliders (AWLC14), Fermilab, May 15, 2014 Probing wrongsign Yukawa couplings [PDF]

Americas Workshop on Linear Colliders (AWLC14), Fermilab, May 12, 2014 Higgs Physics [PDF]

KUTS Workshop (I), Precision SUSY Higgs Mass Calculation Initiative, MaxPlanckInstitut für Physik, Munich, Germany, April 11, 2014 Some Issues for Precision Higgs Mass Computations [PDF]

Gunion Fest, University of California, Davis, March 28, 2014 Precision Higgs and Future Colliders [PDF  Powerpoint]

Bay Area Particle Theory Seminar, San Francisco, CA, March 14, 2014 Decoupling and Alignment in Light of the Higgs data [PDF].
Professional talks at conferences and workshops in previous years are stored here.
Schools and Pedagogical Lectures
 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. 2015 Conferences and workshops in particle physics
2015 Zurich Phenomenology Workshop "The flavour of new physics" (ZPW2015) , January 79, 2015 at the Pauli Center for Theoretical Studies in Zurich, Switzerland
The 9th Workshop of LHC Higgs Cross Section Working Group, January 2224, 2015 at CERN in Geneva, Switzerland
Aspen Center for Physics Winter Conference on Particle Physics: Exploring the Physics Frontier with Circular Colliders, January 26February 1, 2015, in Aspen, CO [Scientific program]
Workshop on the Intermediate Neutrino Program (WINP2015), February 46, 2015 at Broohaven National Laboratory in Upton, NY
The 2nd Toyama International Workshop on "Higgs as a Probe of New Physics 2015" (HPNP2015), February 1115, 2015, in Toyama, Japan
Aspen Center for Physics Winter Conference on Particle Physics: Progress and Applications of Modern Quantum Field Theory, February 1621, 2015, in Aspen, CO [Scientific program]
Bay Area Particle Theory Seminar (BAPTS), March 13, 2015 at San Francisco State University (SFSU) in San Francisco, CA
XXVII Workshop Beyond the Standard Model, March 1619, 2015 at the Physikzentrum in Bad Honnef, Germany
American Physical Society April Meeting, April 1114, 2014 in Baltimore, MD
The 4th MCTP Spring Symposium on Higgs Boson Physics in the Standard Model and Beyond, April 2022, 2015 at the University of Michigan in Ann Arbor, MI
Asian Linear Collider Workshop (ALCW2015), April 2024, 2015 at KEK in Tsukuba, Japan
SCIPP Reunion Theory Symposium, April 24, 2015 at the University of California, Santa Cruz
International Workshop on Baryon & Lepton Number Violation, April 2630, 2015 at the University of Massachusetts in Amherst, MA
Higgs Pair Production at Colliders, April 2730, 2015 At MITP in Mainz, Germany
Phenomenology 2015 Symposium (PHENO 2015), May 46, 2015 in Pittsburgh, PA
Third KUTS Workshop, May 1820, 2015 at LPTHE in Paris, France
Twelfth Conference on the Intersections of Particle and Nuclear Physics (CIPANP 2015), May 1924, 2015 in Vail, Colorado
PLANCK 2015, May 2630, 2015 in Ioannina, Greece
Les Houches Workshop Seris "Physics at TeV Colliders" 2015 Session (PhysTeV), June 119, 2015 at the Les Houches Center for Physics in Les Houches, France
Indirect Searches for New Physics in the LHC and Flavour Precision Era, June 126, 2015 at MIAPP in Munich, Germany
25th Workshop on Weak Interactions and Neutrinos, June 813, 2015 at MPIK in Heidelberg, Germany
2015 RADCORLoopfest, June 1519, 2015 at UCLA in Los Angeles, CA
Invisibles 15 Workshop: "Invisibles Meets Visibles", June 2226, 2015 in Madrid, Spain
Primordial Physics, June 21July 12, 2015 at the Aspen Center for Physics in Aspen, CO
PASCOS2015, June 29July 3, 2015 at the ICTP in Trieste, Italy
Anticipating 14 TeV: Insights into Matter from the LHC and Beyond, June 29July 24, 2015 at MIAPP in Munich, Germany
From Scattering Amplitudes to the Conformal Bootstrap, July 526 at the Aspen Center for Physics in Aspen, CO
First FCCee miniworkshop on Precision Observables and Radiative Corrections, July 1314, 2015 at CERN in Geneva, Switzerland
The 10th Workshop of LHC Higgs Cross Section Working Group, July 1517, 2015 at CERN in Geneva, Switzerland
EPSHEP 2015 Conference, July 2229, 2015 in Vienna, Austria
Neutrinos from Space and on Earth, July 26August 16, 2015 at the Aspen Center for Physics in Aspen, CO
Higgs Hunting 2015, July 30August 1, 2015 at LAL in Orsay, France
2015 Meeting of the APS Division of Particles and Fields (DPF 2015), August 48, 2015 in Ann Arbor, MI
New Directions to Shed Light on Dark Matter, August 9September 13, 2015 at the Aspen Center for Physics in Aspen, CO
SLAC Summer Institute, "The Universe of Neutrinos", August 1021, 2015 at SLAC, in Stanford, CA
27th International Symposium on Lepton Photon Interactions at High Energies, August 1722, 2015 in Ljubljana, Slovenia [Program]
PreSUSY Symposium 2015 August 1721 in Davis, CA
The 23rd International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2015), August 2329 at the Granlibakken Conference Center & Lodge in Tahoe City, CA [Program]
GGI Workshop: "Gearing up for LHC13", August 31October 16, 2015 at the Galileo Galilei Institute for Theoretical Physics in Arcetri, Florence, Italy
Higgs Days at Santander 2015, September 1418, 2015 in Santander, Spain
Higgs Couplings 2015, October 1215, 2015, Lumley Castle, Durham, UK
LCWS 2015, International Workshop on Future Linear Colliders, November 26, 2015, in Whistler BC, Canada
HEFT2015, Third Higgs Effective Field Theories workshop, November 46, 2015, at the University of Chicago
9th Annual Meeting of the Helmholtz Alliance "Physics at the Terascale," November 1718, 2015, at DESY in Hamburg, Germany
Scalars 2015, December 47, 2015, in Warsaw, Poland
Miami 2015, a conference on elementary particle physics, astrophysics and cosmology, December 1622, 2015, in Fort Lauderdale and Coral Gables, Florida.
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
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
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
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: August 26, 2015