The TwoPhoton Decay Mode of MSSM Higgs Bosons at the Large Hadron Collider
Abstract
At the Large Hadron Collider (LHC), the CPeven Higgs bosons ($h^0$ and $H^0$) of the Minimal Supersymmetric Standard Model (MSSM) will be searched for mainly through their twophoton decay. We present a detailed analysis of the production and twophoton decay of the CPeven Higgs bosons of MSSM at the LHC by taking into account all the parameters of the model, especially the bilinear parameter $\mu$ and the trilinear supersymmetry breaking parameter $A$. Nonzero values of these parameters lead to significant mixing in the squark sector, and, thus, affect the masses of Higgs bosons through radiative corrections, as well as their couplings to squarks. The dependence of the cross section for the production of Higgs, and its subsequent decay to two photons, on various parameters of the MSSM is described in detail. The cross section times the twophoton branching ratio of $h^0$ is of the order of 1525~fb in much of the parameter space that remains after imposing the present experimental constraints on the parameters. For the $H^0$, the twophoton branching ratio is only significant if it is light. With a light $H^0$ the cross section times the branching ratio may be 200~fb or more.
 Publication:

arXiv eprints
 Pub Date:
 January 1996
 arXiv:
 arXiv:hepph/9601284
 Bibcode:
 1996hep.ph....1284K
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 13 pages, LaTex Invited paper, Xth International Workshop: High Energy Physics and Quantum Field Theory, Zvenigorod, Russia, September 2026, 1995