MSSM Higgs boson searches at the Tevatron and the LHC: Impact of different benchmark scenarios

Abstract.The Higgs boson search has shifted from LEP2 to the Tevatron and will subsequently move to the LHC. The current limits from the Tevatron and the prospective sensitivities at the LHC are often interpreted in specific MSSM scenarios. For heavy Higgs boson production and subsequent decay into $b \bar b$ or τ+τ–, the present Tevatron data allow one to set limits in the MA–tan β plane for small MA and large tan β values. Similar channels have been explored for the LHC, where the discovery reach extends to higher values of MA and smaller tan β. Searches for MSSM charged Higgs bosons, produced in top decays or in association with top quarks, have also been investigated at the Tevatron and the LHC. We analyze the current Tevatron limits and prospective LHC sensitivities. We discuss how robust they are with respect to variations of the other MSSM parameters and possible improvements of the theoretical predictions for Higgs boson production and decay. It is shown that the inclusion of supersymmetric radiative corrections to the production cross sections and decay widths leads to important modifications of the present limits on the MSSM parameter space. The impact on the region where only the lightest MSSM Higgs boson can be detected at the LHC is also analyzed. We propose to extend the existing benchmark scenarios by including additional values of the higgsino mass parameter μ. This affects only slightly the search channels for a SM-like Higgs boson, while having a major impact on the searches for non-standard MSSM Higgs bosons.

[1]  J. Abdallah,et al.  Searches for Neutral Higgs Bosons in Extended Models , 2004 .

[2]  S. Heinemeyer,et al.  The masses of the neutral , 1999 .

[3]  S. Heinemeyer,et al.  The masses of the neutral ${\cal CP}$-even Higgs bosons in the MSSM: Accurate analysis at the two-loop level , 1998, hep-ph/9812472.

[4]  S. Heinemeyer,et al.  Suggestions for benchmark scenarios for MSSM Higgs boson searches at hadron colliders , 2003 .

[5]  H. Haber,et al.  Approximating the radiatively corrected Higgs mass in the minimal supersymmetric model , 1996, hep-ph/9609331.

[6]  J. Espinosa,et al.  Complete Two-loop Dominant Corrections to the Mass of the Lightest CP-even Higgs Boson in the Minimal Supersymmetric Standard Model , 2000, hep-ph/0003246.

[7]  J. Kalinowski,et al.  HDECAY: a program for Higgs boson decays in the Standard Model and its supersymmetric extension , 1997, hep-ph/9704448.

[8]  A note on twist two operators in = 4 SYM and Wilson loops in Minkowski signature , 2002, hep-th/0210115.

[9]  A. Brignole.  Radiative corrections to the supersymmetric neutral Higgs boson masses , 1992 .

[10]  Dawson,et al.  Radiative corrections to longitudinal-vector-boson scattering. , 1989, Physical review. D, Particles and fields.

[11]  M. Guchait,et al.  Detection of MSSM Higgs bosons from supersymmetric particle cascade decays at the LHC , 2003, hep-ph/0303095.

[12]  P. Slavich,et al.  On the O(αt2) two-loop corrections to the neutral Higgs boson masses in the MSSM , 2001 .

[13]  R. K. Ellis,et al.  Higgs-Boson production in association with a single bottom quark , 2003 .

[14]  Gibson,et al.  ATLAS detector and physics performance : Technical Design Report, 1 , 1999 .

[15]  A. Pilaftsis.  CP odd tadpole renormalization of Higgs scalar - pseudoscalar mixing , 1998, hep-ph/9803297.

[16]  Giuseppe Degrassi,et al.  On the two-loop Yukawa corrections to the MSSM Higgs boson masses at large tanβ , 2003 .

[17]  S. Mrenna,et al.  MSSM Higgs boson phenomenology at the Fermilab tevatron collider. , 1998, hep-ph/9808312.

[18]  S. Heinemeyer,et al.  High-precision predictions for the MSSM Higgs sector at ${{\mathcal{O}}}(\alpha_b\alpha_s)$ , 2004, hep-ph/0411114.

[19]  R. Harlander,et al.  Higgs boson production in bottom quark fusion at next-to-next-to-leading order , 2003, hep-ph/0304035.

[20]  Prospects for heavy supersymmetric charged Higgs boson searches at hadron colliders , 2002, hep-ph/0203031.

[21]  Ren-jie Zhang.  Two loop effective potential calculation of the lightest CP even Higgs boson mass in the MSSM , 1998, hep-ph/9808299.

[22]  R. Harlander,et al.  Hadronic Higgs Production and Decay in Supersymmetry at Next-to-Leading Order , 2003, hep-ph/0307346.

[23]  J. Rosiek,et al.  One loop corrections to the supersymmetric Higgs boson couplings and LEP phenomenology , 1992 .

[24]  S. Heinemeyer,et al.  The Mass of the Lightest MSSM Higgs Boson: A Compact Analytical Expression at the Two-Loop Level , 1999, hep-ph/9903404.

[25]  E. Berger,et al.  Associated production of a top quark and a charged Higgs boson , 2003, hep-ph/0312286.

[26]  J. Espinosa,et al.  The lightest Higgs boson mass in the Minimal Supersymmetric Standard Model , 1995 .

[27]  S. Heinemeyer,et al.  Reconciling the two loop diagrammatic and effective field theory computations of the mass of the lightest CP - even Higgs boson in the MSSM , 2000 .

[28]  Delphi collaboration,et al.  Search for the Standard Model Higgs Boson at LEP , 2001, hep-ex/0107029.

[29]  Giuseppe Degrassi,et al.  On the neutral Higgs boson masses in the MSSM for arbitrary stop mixing , 2001, hep-ph/0105096.

[30]  A. Dabelstein.  Fermionic decays of neutral MSSM Higgs bosons at the one-loop level☆ , 1995 .

[31]  S. Heinemeyer,et al.  FeynHiggs: A Program for the calculation of the masses of the neutral CP even Higgs bosons in the MSSM , 2000 .

[32]  M. Carena,et al.  Analytical expressions for radiatively corrected Higgs masses and couplings in the MSSM , 1995 .

[33]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[34]  A. Holzner.  Search for the standard model Higgs boson at LEP , 2003 .

[35]  S. Heinemeyer,et al.  QCD corrections to the masses of the neutralCP-even Higgs bosons in the minimal supersymmetric standard model , 1998 .

[36]  U. Pietrzyk,et al.  Charm production in deep inelastic muon-iron interactions at 200 GeV/c , 1987 .

[37]  P. Slavich,et al.  On the two-loop sbottom corrections to the neutral Higgs boson masses in the MSSM , 2002 .

[38]  S. Heinemeyer.  The Higgs boson sector of the complex MSSM in the Feynman-diagrammatic approach , 2001, hep-ph/0108059.

[39]  M. Spira,et al.  Higgs radiation off bottom quarks at the Fermilab Tevatron and the CERN LHC , 2003, hep-ph/0309204.

[40]  Hempfling,et al.  Yukawa coupling unification with supersymmetric threshold corrections. , 1994, Physical review. D, Particles and fields.

[41]  S. Kraml,et al.  Improved supersymmetric QCD corrections to Higgs boson decays into quarks and squarks , 1999, hep-ph/9912463.

[42]  A. Hoang,et al.  Two-Loop Radiative Corrections to the Lightest Higgs Boson Mass in the Minimal Supersymmetric Model , 1994, hep-ph/9401219.

[43]  S. Heinemeyer,et al.  Constraints on tan beta in the MSSM from the Upper Bound on the Mass of the Lightest Higgs boson , 1999 .

[44]  S. Heinemeyer,et al.  Towards high-precision predictions for the MSSM Higgs sector , 2002, hep-ph/0212020.

[45]  Stephen P. Martin,et al.  Two loop effective potential for a general renormalizable theory and softly broken supersymmetry , 2001, hep-ph/0111209.

[46]  Michael Spira,et al.  MSSM Higgs boson decays to bottom quark pairs reexamined , 2003 .

[47]  Giovanni Ridolfi,et al.  Radiative corrections to the masses of supersymmetric Higgs bosons , 1991 .

[48]  J. Ellis,et al.  CPsuperH: A Computational tool for Higgs phenomenology in the minimal supersymmetric standard model with explicit CP violation , 2004 .

[49]  The Higgs boson mass as a probe of the minimal supersymmetric standard model , 1998, hep-ph/9805349.

[50]  M. Carena,et al.  Effective Lagrangian for the interaction in the MSSM and charged Higgs phenomenology , 1999, hep-ph/9912516.