Supersymmetry and the LHC Inverse Problem

Details Supersymmetry and the LHC Inverse Problem Supersymmetry and the LHC Inverse Problem

2005-12-14

arxiv.org/abs/hep-ph/0512190v1

JHEP 0608 (2006) 070

Physics

High Energy Physics

High Energy Physics - Phenomenology

55 pages, 30 figures

Scientific paper

10.1088/1126-6708/2006/08/070

Given experimental evidence at the LHC for physics beyond the standard model, how can we determine the nature of the underlying theory? We initiate an approach to studying the "inverse map" from the space of LHC signatures to the parameter space of theoretical models within the context of low-energy supersymmetry, using 1808 LHC observables including essentially all those suggested in the literature and a 15 dimensional parametrization of the supersymmetric standard model. We show that the inverse map of a point in signature space consists of a number of isolated islands in parameter space, indicating the existence of "degeneracies"--qualitatively different models with the same LHC signatures. The degeneracies have simple physical characterizations, largely reflecting discrete ambiguities in electroweak-ino spectrum, accompanied by small adjustments for the remaining soft parameters. The number of degeneracies falls in the range 1

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