Discovering the constrained NMSSM with tau leptons at the LHC
arXiv:1011.0931 · doi:10.1007/JHEP01(2011)103
Abstract
The constrained Next-to-Minimal Supersymmetric Standard Model (cNMSSM) with mSugra-like boundary conditions at the GUT scale implies a singlino-like LSP with a mass just a few GeV below a stau NLSP. Hence, most of the squark/gluino decay cascades contain two tau 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 tau 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 stau-coannihilation region.
18 pages, 3 Figures
References in corpus (15)
- PYTHIA 6.4 Physics and Manual
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Three Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Polarization Analysis
- Search for Neutral MSSM Higgs Bosons at LEP
- Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics
- NMSPEC: A Fortran code for the sparticle and Higgs masses in the NMSSM with GUT scale boundary conditions
- On the radiative corrections to the neutral Higgs boson masses in the NMSSM
- Determining the Dark Matter Relic Density in the Minimal Supergravity Stau-Neutralino Coannihilation Region at the Large Hadron Collider
- Phenomenology of the constrained NMSSM
- The constrained next-to-minimal supersymmetric standard model
- Neutralino Signatures of the Singlet Extended MSSM
- Detection of SUSY in the Stau-Neutralino Coannihilation Region at the LHC
- Non-zero trilinear parameter in the mSUGRA model - dark matter and collider signals at Tevatron and LHC
- Precision measurements, dark matter direct detection and LHC Higgs searches in a constrained NMSSM
- Discovery potential of the next-to-minimal supergravity-motivated model