Chargino reconstruction in supersymmetry with long-lived staus

Details Chargino reconstruction in supersymmetry with long-lived staus Chargino reconstruction in supersymmetry with long-lived staus

2009-10-19

arxiv.org/abs/0910.3446v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, 6 figures and 3 tables

Scientific paper

We consider a supersymmetric (SUSY) scenario including right-handed neutrinos, one of whose scalar superpartners is the lightest SUSY particle (LSP). The distinguishing feature in the collider signal of SUSY in such a case is not missing energy but a pair of charged tracks corresponding to the next-to- lightest SUSY particle, when it is, as in the case considered, a stau. Following up on our recent work on neutralino reconstruction in such cases, we explore the possibility of reconstructing charginos, too, through a study of transverse mass distributions in specified final states. The various steps of isolating the transverse momenta of neutrinos relevant for this are outlined, and regions of the parameter space where our procedure works are identified.

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