Flavour Structure of R-violating Neutralino Decays at the LHC

Abstract

We study signatures of R-parity violation in the production of supersymmetric particles at the LHC, and the subsequent decay of the lightest neutralino being the end product of a supersymmetric cascade decay. In doing so, we pay particular attention to the possible flavour structure of the operators, and how one may discriminate between different possibilities. A neutralino LSP would couple to all quarks and leptons and a comparative study of its decays provides an optimal channel for the simultaneous study of all 45 R-violating operators. By studying the expected signals from all these operators, we demonstrate the ability to understand whether more than one coupling dominates, and to map the experimental signatures to operator hierarchies that can then be compared against theoretical models of flavour. Detailed comparisons with backgrounds, including those from MSSM cascade decays are made, using the PYTHIA event simulator.

47 pages, 22 figures; v2 matches JHEP version

References in corpus (6)

• PYTHIA 6.4 Physics and Manual
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Probing bilinear R-parity violating supergravity at the LHC
• Radiative gravitino decays from R-parity violation
• Gravitino Dark Matter and the Flavour Structure of R-violating Operators
• Rare tau Decays in R-parity Violating Supersymmetry

Cited by in corpus (9)

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• Quasi-stable neutralinos at the LHC
• Baryonic violation of R-parity from anomalous $U(1{)}_H$
• Neutrino masses from R-parity violation with a $Z_3$ symmetry
• R-parity violating chargino decays at the LHC
• R-Parity violating flavor symmetries, recent neutrino data and absolute neutrino mass scale
• Sneutrino Identification in Lepton Pair Production at ILC with Polarized Beams