https://doi.org/10.1140/epjc/s10052-011-1610-9
Regular Article - Theoretical Physics
Effective two Higgs doublets in nonminimal supersymmetric models
1
Department of Physics and Astronomy, University of California, Riverside, CA, 92521, USA
2
Institut für Theoretische Physik, University of Heidelberg, 69120, Heidelberg, Germany
* e-mail: m.maniatis@thphys.uni-heidelberg.de
Received:
14
January
2011
Revised:
17
January
2011
Published online:
8
April
2011
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.
© Springer-Verlag / Società Italiana di Fisica, 2011
