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Keywords
(5)
Boundary Condition
Effective Mass
Parameter Space
Supersymmetry Phenomenology
constrained minimal supersymmetric standard model
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Discovering the constrained NMSSM with tau leptons at the LHC
Discovering the constrained NMSSM with tau leptons at the LHC,10.1007/JHEP01(2011)103,Journal of High Energy Physics,Ulrich Ellwanger,Alice Florent,Di
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Discovering the constrained NMSSM with tau leptons at the LHC
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Ulrich Ellwanger
,
Alice Florent
,
Dirk Zerwas
The constrained NexttoMinimal Supersymmetric StandardModel (cNMSSM) with mSugralike boundary conditions at the GUT scale implies a singlinolike LSP with a mass just a few GeV below a stau NLSP. Hence, most of the squark/gluino decay cascades contain two τ leptons. The gluino mass ≳ 1.2 TeV is somewhat larger than the squark masses of ≳ 1 TeV. We simulate signal and background events for such a scenario at the LHC, and propose cuts on the transverse momenta of two jets, the missing transverse energy and the transverse momentum of a hadronically decaying τ lepton. This dedicated analysis allows to improve on the results of generic supersymmetry searches for a large part of the
parameter space
of the cNMSSM. The distribution of the
effective mass
and the signal rate provide sensitivity to distinguish the cNMSSM from the
constrained Minimal Supersymmetric Standard Model
in the staucoannihilation region.
Journal:
Journal of High Energy Physics  J HIGH ENERGY PHYS
, vol. 2011, no. 1, pp. 118, 2011
DOI:
10.1007/JHEP01(2011)103
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