Flavour Structure of R-violating Neutralino Decays at the LHC

Details Flavour Structure of R-violating Neutralino Decays at the LHC Flavour Structure of R-violating Neutralino Decays at the LHC

2011-05-20

arxiv.org/abs/1105.4022v2

JHEP 1107:070,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

47 pages, 22 figures; v2 matches JHEP version

Scientific paper

10.1007/JHEP07(2011)070

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.

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