Supersymmetric particle mass measurement with invariant mass correlations

Details Supersymmetric particle mass measurement with invariant mass correlations Supersymmetric particle mass measurement with invariant mass correlations

2009-02-13

arxiv.org/abs/0902.2331v3

JHEP 0904:084,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pages, 23 .eps figures, JHEP3 style; v2 adds some references and small clarifications to text; v3 adds some more clarificat

Scientific paper

10.1088/1126-6708/2009/04/084

The kinematic end-point technique for measuring the masses of supersymmetric particles in R-Parity conserving models at hadron colliders is re-examined with a focus on exploiting additional constraints arising from correlations in invariant mass observables. The use of such correlations is shown to potentially resolve the ambiguity in the interpretation of quark+lepton end-points and enable discrimination between sequential two-body and three-body lepton-producing decays. The use of these techniques is shown to improve the SUSY particle mass measurement precision for the SPS1a benchmark model by at least 20-30% compared to the conventional end-point technique.

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