Effective two Higgs doublets in nonminimal supersymmetric models |
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| Authors: | Ernest Ma Markos Maniatis |
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| Institution: | 1.Department of Physics and Astronomy,University of California,Riverside,USA;2.Institut für Theoretische Physik,University of Heidelberg,Heidelberg,Germany |
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| Abstract: | The Higgs sectors of supersymmetric extensions of the Standard Model have two doublets in the minimal version (MSSM), and
two doublets plus a singlet in two others: with (UMSSM) and without (NMSSM) an extra U(1)′. A very concise comparison of these three models is possible if we assume that the singlet has a somewhat larger breaking
scale compared to the electroweak scale. In that case, the UMSSM and the NMSSM become effectively two-Higgs-doublet models
(THDM), like the MSSM. In this approach the well-known upper mass bounds on the lightest CP-even neutral Higgs boson can be
derived in a very simple and transparent way. |
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