SUSY parameter determination at the LHC using cross sections and kinematic edges

Details SUSY parameter determination at the LHC using cross sections and kinematic edges SUSY parameter determination at the LHC using cross sections and kinematic edges

2010-03-12

arxiv.org/abs/1003.2648v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 8 figures

Scientific paper

We study the determination of supersymmetric parameters at the LHC from a global fit including cross sections and edges of kinematic distributions. For illustration, we focus on a minimal supergravity scenario and discuss how well it can be constrained at the LHC operating at 7 and 14 TeV collision energy, respectively. We find that the inclusion of cross sections greatly improves the accuracy of the SUSY parameter determination, and allows to reliably extract model parameters even in the initial phase of LHC data taking with 7 TeV collision energy and 1/fb integrated luminosity. Moreover, cross section information may be essential to study more general scenarios, such as those with non-universal gaugino masses, and distinguish them from minimal, universal, models.

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