Abstract
A search for neutral Higgs bosons predicted in the minimal supersymmetric standard model (MSSM) for μ+μ− decay channels is presented. The analysis uses data collected by the CMS experiment at the LHC in proton–proton collisions at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 5.1 and 19.3 fb−1, respectively. The search is sensitive to Higgs bosons produced either through the gluon fusion process or in association with a bb‾ quark pair. No statistically significant excess is observed in the μ+μ− mass spectrum. Results are interpreted in the framework of several benchmark scenarios, and the data are used to set an upper limit on the MSSM parameter tanβ as a function of the mass of the pseudoscalar A boson in the range from 115 to 300 GeV. Model independent upper limits are given for the product of the cross section and branching fraction for gluon fusion and b quark associated production at s=8 TeV. They are the most stringent limits obtained to date in this channel.
Highlights
The predictions of the standard model (SM) [1,2,3,4,5,6,7] of fundamental interactions have been confirmed by a large number of experimental measurements
This paper reports on a search for the minimal supersymmetric extension of the standard model (MSSM) neutral Higgs bosons produced either by the AP or gluon fusion (GF) mechanisms, where the
The results presented in this paper are obtained in the framework of the MSSM mmh od+ scenario
Summary
The predictions of the standard model (SM) [1,2,3,4,5,6,7] of fundamental interactions have been confirmed by a large number of experimental measurements. The mmh ax benchmark scenario [19,31] provides mh values as large as 135 GeV, and the weakest bounds on tan β for fixed values of the top quark mass For this reason, it has been used in most of the previously quoted analyses to present the results from MSSM Higgs boson searches. Within the MSSM the newly discovered state with a mass of 125 GeV can be interpreted as the light CP-even Higgs boson, h [32] In this case, a large part of the mA – tan β parameter space is excluded within the mmh ax scenario, and new benchmarks were proposed in which the MSSM parameters are adjusted to have mh in the interval 122 to 128 GeV, but with a wider range of tan β and mA values [19, 31,32].
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