Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-01-29
Ann.Rev.Nucl.Part.Sci.58:75-98,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
53 pages, review intended for Annual Reviews of Nuclear Science. Final corrections and references now included
Scientific paper
10.1146/annurev.nucl.58.110707.1
This review summarizes the motivations for and phenomenological consequences of nonstandard Higgs boson decays, with emphasis on final states containing a pair of non-Standard-Model particles that subsequently decay to Standard Model particles. Typically these non-Standard-Model particles are part of a ``hidden'' sector, for example a pair of neutral Higgs bosons or a pair of unstable neutralinos. We emphasize that such decays allow for a Higgs substantially below the Standard Model Higgs LEP limit of 114 GeV. This in turn means that the ``fine-tuning'' problems of many Beyond the Standard Model (BSM) theories, in particular supersymmetric models, can be eliminated while achieving excellent consistency with precision electroweak data which favor a Higgs boson with mass below $100\gev$ and standard $WW$, $ZZ$, and top couplings.
Chang Spencer
Dermisek Radovan
Gunion John F.
Weiner Neal
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