Abstract
The search for the production of weakly-interacting SUSY particles at the LHC is crucial for testing supersymmetry in relation to dark matter. Decays of neutralinos into Higgs bosons occur over some significant part of the SUSY parameter space and represent the most important source of $h$ boson production in SUSY decay chains in the MSSM. We study h production in neutralino decays using scans of the phenomenological MSSM. Whilst in constrained MSSM scenarios the decay chi^0_2 -> h chi^0_1 is the dominant channel, this does not hold in more general MSSM scenarios. On the other hand, the chi^0_2,3 -> h chi^0_1 decays remain important and are highly complementary to multi-lepton final states in the LHC searches. The perspectives for the LHC analyses at 8 and 14 TeV as well as the reach of an e+e- collider at 0.5, 1, 1.5 and 3 TeV are discussed.
Highlights
The discovery of a Higgs boson by the ATLAS and CMS experiments [1,2] at the CERN LHC has opened an era of detailed studies of its production and decay properties
This study is based on the analysis of a large sample of MSSM points obtained through a flat scan of the phenomenological minimal supersymmetric extension of the SM (pMSSM) parameters, which are varied in an uncorrelated way within the following ranges: 1 ≤ tan β ≤ 60, 50 GeV ≤ MA ≤ 2 TeV
In order to characterise the occurrence of the various decays in different regions of the parameter space, we first study the fraction of the accepted pMSSM points into each bin in the [μ, M1] and [μ, M2] planes where hχ10, Z χ10 and the sum ofand ττ is the dominant two-body neutralino decay mode
Summary
The discovery of a Higgs boson by the ATLAS and CMS experiments [1,2] at the CERN LHC has opened an era of detailed studies of its production and decay properties. Establishing if the discovered particle is the Standard Model (SM) Higgs boson or the manifestation of an extended Higgs sector is a key question. Higgs particle is the lightest Higgs boson, h, of a supersymmetric extension of the SM (SUSY), it could be significantly produced in the decay chains of supersymmetric particles. We shall show here that the decays of neutralinos, χ. J. C (2015) 75:108 for various centre-of-mass energies, while Sect. C (2015) 75:108 for various centre-of-mass energies, while Sect. 7 has the conclusions
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