Constraints on tan β in the MSSM from the upper bound on the mass of the lightest Higgs boson
Author(s) -
S. Heinemeyer,
W. Hollik,
G. Weiglein
Publication year - 2000
Publication title -
journal of high energy physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.998
H-Index - 261
eISSN - 1126-6708
pISSN - 1029-8479
DOI - 10.1088/1126-6708/2000/06/009
Subject(s) - physics , higgs boson , particle physics , supersymmetry , upper and lower bounds , benchmark (surveying) , generalization , minimal supersymmetric standard model , function (biology) , beta (programming language) , computer science , mathematics , biology , mathematical analysis , geodesy , evolutionary biology , geography , programming language
We investigate the possibilities for constraining tan beta within the MSSM bycombining the theoretical result for the upper bound on the lightestHiggs-boson mass as a function of tan beta with the informations from thedirect experimental search for this particle. We discuss the commonly used``benchmark'' scenario, in which the parameter values m_top = 175 GeV andM_susy = 1 TeV are chosen, and analyze in detail the effects of varying theother SUSY parameters. We furthermore study the impact of the new diagrammatictwo-loop result for mh, which leads to an increase of the upper bound on mh byseveral GeV, on present and future constraints on tan beta. We suggest a slightgeneralization of the ``benchmark'' scenario, such that the scenario containsthe maximal possible values for mh(tan beta) within the MSSM for fixed m_topand M_susy. The implications of allowing values for m_top, M_susy beyond the``benchmark'' scenario are also discussed.Comment: 11 pages, 5 figures. Minor changes, two references added. Version to appear in JHE
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom