Göttingen 2012 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 50: Supersymmetrie 1

T 50.4: Vortrag

Montag, 27. Februar 2012, 17:30–17:45, ZHG 010

Mitigation of the LHC Inverse Problem — •Nicki Bornhauser and Manuel Drees — Physikalisches Institut und Bethe Center for Theoretical Physics der Universität Bonn

The LHC inverse problem describes the difficulties determining the parameters of an underlying theory from experimental data. If the LHC experiments find signals of new physics, and an underlying theory is assumed, could its parameters be determined uniquely, or do different parameter choices give the same experimental signature? This inverse problem was studied before for a supersymmetric standard model with 15 free parameters. This earlier study found 283 indistinguishable parameter choices, called degenerate pairs. We can dissolve 242 of those pairs by using mostly counting observables as a signature. The elimination of systematic errors would even allow separating the residual degeneracies. Taking the Standard Model background into account would increase the number of degenerate pairs only slightly.