Observability of MSSM Higgs bosons via sparticle decay modes in CMS

Details Observability of MSSM Higgs bosons via sparticle decay modes in CMS Observability of MSSM Higgs bosons via sparticle decay modes in CMS

2001-12-04

arxiv.org/abs/hep-ph/0112046v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 20 figures

Scientific paper

We discuss the possibilities to observe the decays of heavy SUSY Higgs bosons into supersymmetric particles at the LHC. Such an observation would be of interest either in a discovery search if sparticle modes are the dominant ones, or in a study of additional decay modes, bringing information on the SUSY scenario potentially at work. We will focus on the most promising channel where the heavy neutral Higgses decay into a pair of next-to-lightest neutralinos, followed by their decay into two leptons and the LSP, thus leading to four isolated leptons + missing E_T as the main final state signature. A study with the CMS detector shows that the background (SM + SUSY) can be sufficiently suppressed and that in the mass region between m_A = 230 and 450 GeV, for low and intermediate values of tan beta, the signal would be visible provided neutralinos and sleptons are light enough.

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