How to Detect `Decoupled' Heavy Supersymmetric Higgs Bosons

Details How to Detect `Decoupled' Heavy Supersymmetric Higgs Bosons How to Detect `Decoupled' Heavy Supersymmetric Higgs Bosons

2007-09-07

arxiv.org/abs/0709.1031v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 3 figures; uses revtex.cls, revtex.sty, aps.sty, aps10.sty, prabib.sty

Scientific paper

Heretofore neglected decay modes of heavy MSSM Higgs bosons into a variety of neutralino pairs may push the LHC discovery reach for these crucial elements of an extended Higgs sector to nearly the TeV-scale -- if sparticle-sector MSSM input parameters are favorable. This is well into the so-called decoupling region, including moderate to low tan(beta) values, where no known signals exist for said heavy Higgs bosons via decays involving solely SM daughter particles, and the lighter h^0 mimics the lone SM Higgs boson. While the expanse of the Higgs to sparticle discovery region is sensitive to a number of MSSM parameters, including in particular those for the sleptons, its presence is primarily linked to the gaugino inputs -- in fact, to just one parameter, M_2, if gaugino unification is invoked. Thus consideration of high vs. low M_2 realms in the MSSM should be placed on a par with the extensive consideration already given to high vs. low tan(beta) regimes.

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