Junjie Cao, Zhaoxia Heng, Jin Min Yang, Jingya Zhu
Confronted with the LHC data of a Higgs boson around 125 GeV, different models of low energy SUSY show different behaviors: some are favored, some are marginally survived and some are strongly disfavored or excluded. In this note we update our previous scans over the parameter spaces of various low energy supersymmetric models, namely the CMSSM, MSSM, NMSSM and nMSSM, by considering the latest experimental limits. Then we confront the predicted properties of the SM-like Higgs boson in each model with the combined 7 TeV and 8 TeV Higgs search data of the LHC. For the Higgs boson around 125 GeV, we have the following observations: (i) The most favored model is the NMSSM, whose predictions about the Higgs boson can easily agree with the experimental data at 1-sigma level, better than the SM; (ii) The nMSSM is excluded at 2-sigma level due to the severely suppressed di-photon rate at the LHC; (iii) The CMSSM is quite disfavored since it is hard to predict a 125 GeV Higgs boson and raise the di-photon rate; (iv) The MSSM is similar to the SM, whose predictions are within the 2-sigma range but outside the 1-sigma range of the experimental data.
View original:
http://arxiv.org/abs/1207.3698
No comments:
Post a Comment