Multi-Higgs boson production in the standard model and beyond

We present a calculation of the loop-induced processes gg ! HH and gg ! HHH, and investigate the observability of multi-Higgs boson production at the CERN Large Hadron Collider (LHC) in the Standard Model (SM) and beyond. While the SM cross sections are too small to allow observation at the LHC, we demonstrate that physics beyond the SM can lead to amplified, observable cross sections. Furthermore, the applicability of the heavy top quark approximation in two- and three-Higgs boson production is investigated. We conclude that multi-Higgs boson production at the SuperLHC is an interesting probe of Higgs sectors beyond the SM and warrants further study.

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

[2]  T. Binoth,et al.  Influence of strongly coupled, hidden scalars on Higgs signals , 1997 .

[3]  U. Baur,et al.  Examining the Higgs boson potential at lepton and hadron colliders: A comparative analysis , 2003, hep-ph/0304015.

[4]  M. Dührssen,et al.  Extracting Higgs boson couplings from CERN LHC data , 2004, hep-ph/0406323.

[5]  T. Plehn,et al.  PAIR PRODUCTION OF NEUTRAL HIGGS PARTICLES IN GLUON-GLUON COLLISIONS , 1996 .

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

[7]  O. Sampayo,et al.  Studying the triple Higgs self-coupling via e+ e- -> b anti-b HH, t anti-t HH at future linear e+ e- colliders , 2006 .

[8]  S. Stapnes,et al.  Physics potential and experimental challenges of the LHC luminosity upgrade , 2002, hep-ph/0204087.

[9]  F. Boudjema,et al.  Measurements of the supersymmetric Higgs self-couplings and the reconstruction of the Higgs potential , 2002 .

[10]  A. Sherstnev,et al.  Physics interplay of the LHC and the ILC , 2006 .

[11]  J.A.M. Vermaseren,et al.  New features of FORM , 2000 .

[12]  A. Djouadi.  The Anatomy of electro-weak symmetry breaking. I: The Higgs boson in the standard model , 2005, hep-ph/0503172.

[13]  R. Kleiss,et al.  Weight optimization in multichannel Monte Carlo , 1994 .

[14]  F. Boudjema,et al.  Double Higgs production at the linear colliders and the probing of the Higgs self-coupling , 1995, hep-ph/9507396.

[15]  T. Binoth,et al.  Reduction formalism for dimensionally regulated one loop N point integrals , 1999, hep-ph/9911342.

[16]  H. Thacker,et al.  Weak interactions at very high energies: The role of the Higgs-boson mass , 1977 .

[17]  A. Djouadi.  The anatomy of electroweak symmetry breaking Tome II: The Higgs bosons in the Minimal Supersymmetric Model , 2005, hep-ph/0503173.

[18]  Haber,et al.  Renormalization-group-improved Higgs sector of the minimal supersymmetric model. , 1993, Physical review. D, Particles and fields.

[19]  J. Gunion,et al.  The Higgs Hunter's Guide , 1990 .

[20]  U. Baur,et al.  Determining the Higgs boson self-coupling at hadron colliders , 2003 .

[21]  R. Kleiss,et al.  All electroweak four-fermion processes in electron-positron collisions , 1994 .

[22]  Michael Spira,et al.  Neutral Higgs-Boson Pair Production at Hadron Colliders: QCD Corrections , 1998 .

[23]  Searches for Higgs bosons : Preliminary combined results from the four LEP experiments at √ s ≈ 189 GeV ALEPH , DELPHI , L 3 and OPAL Collaborations The LEP working group for Higgs boson searches , 2022 .

[24]  R. Belušević,et al.  Higgs self-coupling in {gamma}{gamma} collisions , 2004, hep-ph/0403303.

[25]  S. Heinemeyer,et al.  FeynHiggs1.2: Hybrid MS-bar / on-shell renormalization for the CP even Higgs boson sector in the MSSM , 2002, hep-ph/0202166.

[26]  John Ellis,et al.  Int. J. Mod. Phys. , 2005 .

[27]  H. Thacker,et al.  Weak interactions at very high energies: The role of the Higgs-boson mass , 1991 .

[28]  Claudio O. Dib,et al.  Double Higgs production and quadratic divergence cancellation in little Higgs models with T parity , 2006 .

[29]  Tilman Plehn,et al.  Quartic Higgs coupling at hadron colliders , 2005 .

[30]  U. Baur,et al.  Probing the Higgs self-coupling at hadron colliders using rare decays , 2003, hep-ph/0310056.

[31]  J. Gunion,et al.  Errata for the Higgs hunter's guide , 1993, hep-ph/9302272.

[32]  V. Büscher,et al.  HIGGS BOSON SEARCHES AT HADRON COLLIDERS , 2005, hep-ph/0504099.