Table of Contents


Contact Information

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 Tuesdays 1--2 pm and Thursdays 11 am--12 noon
e-mail haber@scipp.ucsc.edu
alternate e-mail haber@ucsc.edu


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Most recent teaching

excerpted from a 1996 Foxtrot cartoon by Bill Amend

Local seminars and colloquia


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Higgs Boson Links



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The Higgs Boson Re-explained

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


RECENT NEWS

new!!! July 16, 2015: My paper in collaboration with Oscal Stål entitled New LHC Benchmarks for the CP-conserving Two-Higgs-Doublet 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, CP-conserving, two-Higgs-doublet Model (2HDM) with a softly broken Z2-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 CP-even 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 non-standard 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 Two-Higgs-Doublet Models:Part 1: mh=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 CP-even 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 non-SM-like Higgs scalars are not significantly larger than the SM-like Higgs boson. For the numerical analysis, we perform scans of the 2HDM parameter space, taking into account all relevant pre-LHC 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 Higgs-like 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 CP-conserving Two-Higgs-Doublet 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 CP-conserving 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 Two-Higgs Doublet Model up to the Planck scale was re-posted 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.

Congratulations to the new Ph.D.'s

May 29, 2015: Team Re-Entry's attempt to reclaim the UCSC Intramurals Coed Softball Championship just falls short when the umpires rule that the dramatic walk-off game winning two run homerun by A.J. was foul. Unable to overcome that unfathomable call, instead of celebrating the 5--4 victory, Re-Entry was on the losing end of a 4--3 heartbreaking loss to the Master Batters. For more details, click on this link.

Spring 2015 Coed Softball Team

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 sector--the 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 Two-Higgs 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 SM-like 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 2--6 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 tree-level and loop-level 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.

news archive    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.

Link to my three most recent preprints:

Link to my most recent publication:

Link to my most recent conference proceedings:

Twelve selected publications from the last twelve years are listed below.

  1. 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

  2. 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

  3. 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


  4. 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


  5. 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]


  6. 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 1101 (2011) 138, Erratum-ibid. 1107 (2011) 087, Erratum-ibid. 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]
    e-Print: arXiv:1010.4261 [hep-ph]


  7. 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]


  8. 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]


  9. 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 0711 (2007) 059
    DOI: 10.1088/1126-6708/2007/11/059
    Published version:   [PDF]
    e-Print: arXiv:0707.3718 [hep-ph]


  10. 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


  11. 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



My two most highly cited papers (not including reviews) are listed below.


  1. 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]


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

  1. Supersymmetry, Part I (Theory).
    Howard E. Haber (UC, Santa Cruz). Oct. 2013. 55 pp.
      PDF from the 2014 edition of the
    Review of Particle Physics (RPP)
    Particle Data Group Collaboration (K A Olive (Minnesota U.) et al.). 2014. 1675 pp.
    Published in Chin.Phys. C38 (2014) 090001
    DOI: 10.1088/1674-1137/38/9/090001
    Published version:   [PDF]




  2. 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]
  3. 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.]

  4. 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


  5. 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.


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IV. Published Books

Co-authored books

  1. 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

    Link to The Higgs Hunter's Guide webpage at the Perseus Books Group.

    You can also order an e-book version of the Higgs Hunter's Guide from ebooks.com. A limited preview is available.



Edited books

  1. Link to Particle Physics and Cosmology webpage at World Scientific Publishing.


  2. 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.





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V. Teaching

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VI. Notes and other writings

  1. Toward a set of 2HDM benchmarks     [PDF | PS]
  2. The eigenvalues of the quadratic Casimir operator and second-order indices of a simple Lie algebra     [PDF | PS]
  3. Notes on basis changes and matrix diagonalization     [PDF | PS]
  4. Notes on the complex inverse trigonometric and hyperbolic functions and their principal values     [PDF | PS]
  5. Proof of a trace inequality in matrix algebra     [PDF | PS]
  6. Notes on the spontaneous breaking of SU(N) and SO(N) via a second-rank tensor multiplet     [PDF | PS]
  7. Notes on antisymmetric matrices and the pfaffian     [PDF | PS]
  8. Complex representation of scalar fields and the embedding of U(n) in SO(2n)     [PDF | PS]
  9. The probability that a product of random numbers is less than a fixed constant     [PDF | PS]
  10. Massless Majorana and Weyl fermions cannot be distinguished     [PDF | PS]

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VII. Talks at conferences, workshops and schools, 2004--2015

2015 Conferences and workshops

  1. 2HDM Benchmark Discussion, CERN, June 23, 2015     LHC Benchmarks for the CP-conserving 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]
  2. Third KUTS Workshop at LPTHE in Paris, France, May 20, 2015     The Alignment Limit of the MSSM Higgs sector--the Impact of Radiative Corrections   [PDF]
  3. 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]
  4. 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]
  5. SiD Workshop, January 2015 at SLAC, January 12, 2015     Higgs Physics and the ILC   [PDF]

2014 Conferences and workshops

  1. IFT Program on Physics Challenges in the face of LHC-14, Madrid, Spain, September 25, 2014     Constraints on the alignment limit of the MSSM Higgs sector   [PDF]
  2. IFT Program on Physics Challenges in the face of LHC-14, Madrid, Spain, September 23, 2014     Motivations for a stable scalar in an extended Higgs sector   [PDF]
  3. Higgs Days at Santander 2014, Santander, Spain, September 9, 2014     2HDM Benchmarks--Theoretical Framework   [PDF]
  4. Workshop on Multi-Higgs Models, Lisbon, Portugal, September 2, 2014     Constraints on the alignment limit of the MSSM Higgs sector   [PDF]
  5. 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]

  6. Workshop of the LHC Higgs Cross Section Working Group, CERN, June 13, 2014     2HDM---Report on recent activities   [PDF]

  7. Americas Workshop on Linear Colliders (AWLC14), Fermilab, May 15, 2014     Probing wrong-sign Yukawa couplings   [PDF]

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

  9. KUTS Workshop (I), Precision SUSY Higgs Mass Calculation Initiative, Max-Planck-Institut für Physik, Munich, Germany, April 11, 2014     Some Issues for Precision Higgs Mass Computations   [PDF]

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

  11. Bay Area Particle Theory Seminar, San Francisco, CA, March 14, 2014     Decoupling and Alignment in Light of the Higgs data   [PDF].

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

Schools and Pedagogical Lectures

  1. 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]

  2. Idpasc Higgs School, Foz do Arelho, Portugal, 6--9 Sept 2011,     Theory of Higgs Bosons: The Standard Model and Beyond   [PDF]

  3. 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]

  4. 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]

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

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

  7. 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]

  8. 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. 2015 Conferences and workshops in particle physics

2015 Zurich Phenomenology Workshop "The flavour of new physics" (ZPW2015) , January 7--9, 2015 at the Pauli Center for Theoretical Studies in Zurich, Switzerland

The 9th Workshop of LHC Higgs Cross Section Working Group, January 22--24, 2015 at CERN in Geneva, Switzerland

Aspen Center for Physics Winter Conference on Particle Physics: Exploring the Physics Frontier with Circular Colliders, January 26--February 1, 2015, in Aspen, CO     [Scientific program]

Workshop on the Intermediate Neutrino Program (WINP2015), February 4--6, 2015 at Broohaven National Laboratory in Upton, NY

The 2nd Toyama International Workshop on "Higgs as a Probe of New Physics 2015" (HPNP2015), February 11--15, 2015, in Toyama, Japan

Aspen Center for Physics Winter Conference on Particle Physics: Progress and Applications of Modern Quantum Field Theory, February 16--21, 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 16--19, 2015 at the Physikzentrum in Bad Honnef, Germany

American Physical Society April Meeting, April 11--14, 2014 in Baltimore, MD

The 4th MCTP Spring Symposium on Higgs Boson Physics in the Standard Model and Beyond, April 20--22, 2015 at the University of Michigan in Ann Arbor, MI

Asian Linear Collider Workshop (ALCW-2015), April 20--24, 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 26--30, 2015 at the University of Massachusetts in Amherst, MA

Higgs Pair Production at Colliders, April 27--30, 2015 At MITP in Mainz, Germany

Phenomenology 2015 Symposium (PHENO 2015), May 4--6, 2015 in Pittsburgh, PA

Third KUTS Workshop, May 18--20, 2015 at LPTHE in Paris, France

Twelfth Conference on the Intersections of Particle and Nuclear Physics (CIPANP 2015), May 19--24, 2015 in Vail, Colorado

PLANCK 2015, May 26--30, 2015 in Ioannina, Greece

Les Houches Workshop Seris "Physics at TeV Colliders" 2015 Session (PhysTeV), June 1--19, 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 1--26, 2015 at MIAPP in Munich, Germany

25th Workshop on Weak Interactions and Neutrinos, June 8--13, 2015 at MPIK in Heidelberg, Germany

2015 RADCOR--Loopfest, June 15--19, 2015 at UCLA in Los Angeles, CA

Invisibles 15 Workshop: "Invisibles Meets Visibles", June 22--26, 2015 in Madrid, Spain

Primordial Physics, June 21--July 12, 2015 at the Aspen Center for Physics in Aspen, CO

PASCOS-2015, June 29--July 3, 2015 at the ICTP in Trieste, Italy

Anticipating 14 TeV: Insights into Matter from the LHC and Beyond, June 29--July 24, 2015 at MIAPP in Munich, Germany

From Scattering Amplitudes to the Conformal Bootstrap, July 5--26 at the Aspen Center for Physics in Aspen, CO

First FCC-ee mini-workshop on Precision Observables and Radiative Corrections, July 13--14, 2015 at CERN in Geneva, Switzerland

The 10th Workshop of LHC Higgs Cross Section Working Group, July 15--17, 2015 at CERN in Geneva, Switzerland

EPS-HEP 2015 Conference, July 22--29, 2015 in Vienna, Austria

Neutrinos from Space and on Earth, July 26--August 16, 2015 at the Aspen Center for Physics in Aspen, CO

Higgs Hunting 2015, July 30--August 1, 2015 at LAL in Orsay, France

2015 Meeting of the APS Division of Particles and Fields (DPF 2015), August 4--8, 2015 in Ann Arbor, MI

New Directions to Shed Light on Dark Matter, August 9--September 13, 2015 at the Aspen Center for Physics in Aspen, CO

SLAC Summer Institute, "The Universe of Neutrinos", August 10--21, 2015 at SLAC, in Stanford, CA

27th International Symposium on Lepton Photon Interactions at High Energies, August 17--22, 2015 in Ljubljana, Slovenia     [Program]

Pre-SUSY Symposium 2015 August 17--21 in Davis, CA

The 23rd International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2015), August 23--29 at the Granlibakken Conference Center & Lodge in Tahoe City, CA

GGI Workshop: "Gearing up for LHC13", August 31--October 16, 2015 at the Galileo Galilei Institute for Theoretical Physics in Arcetri, Florence, Italy

Higgs Days at Santander 2015, September 14--18, 2015 in Santander, Spain

Higgs Couplings 2015, October 12-15, 2015, Lumley Castle, Durham, UK

LCWS 2015, International Workshop on Future Linear Colliders, November 2--6, 2015, in Whistler BC, Canada

HEFT2015, Third Higgs Effective Field Theories workshop, November 4--6, 2015, at the University of Chicago

9th Annual Meeting of the Helmholtz Alliance "Physics at the Terascale," November 17--18, 2015, at DESY in Hamburg, Germany

Scalars 2015, December 4--7, 2015, in Warsaw, Poland

Miami 2015, a conference on elementary particle physics, astrophysics and cosmology, December 16--22, 2015, in Fort Lauderdale and Coral Gables, Florida.

conference and workshop archive    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

CERN homepage

CERN users

CERN Theory group

CERN Document Server

CERN Yellow Reports

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

INSPIRE HEP

CERN Document Server

Interactions.org

Particle Data Group

High Energy Physics Software and Collider Tools

International Linear Collider

American Linear Collider Working Group

International Linear Collider (ILC) homepage

ILC Technical Design Report

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

Particle physics outreach

The Particle Adventure

Hands on CERN

Physikshow at the University of Bonn

Particle physics jobs

Theoretical Particle Physics Jobs Rumor Mill

High Energy Physics Postdoc Rumor Mill

Physics blogs

Asymptotia

BackReAction

Cosmic Variance

Of Particular Significance

Quantum Diaries

A Quantum Diaries Survivor

Resonaances

viXra log

Physics links

Division of Particles and fields of the APS

American Physical Society

Professional publishers

EPJC Manuscript Central

ScienceDirect

SpringerLink

Search links

Google Books

Google Scholar

Tevatron physics results

Tevatron New Phenomena & Higgs Working Group

TeX and LaTeX links

The TeX Catalog Online

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

ESPN

National Football League

National Hockey League

San Francisco Giants

San Francisco 49ers

San Jose Sharks

Major League Baseball

Weather

AccuWeather.com

The Weather Channel

The Weather Underground


XIII. Photographs

Photographs that I have taken at various physics conferences and workshops can be found at this link. Pictures of the Re-Entry coed softball team from the last eleven years can be found here.

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haber@scipp.ucsc.edu
Last Updated: July 16, 2015