%0 Journal Article
%T Analysis of Long-Lived Slepton NLSP in GMSB model at Linear Collider
%A Pedro G. Mercadante
%A J. Kenichi Mizukoshi
%A Hitoshi Yamamoto
%J Physics
%D 2000
%I arXiv
%R 10.1103/PhysRevD.64.015005
%X We performed an analysis on the detection of a long-lived slepton at a linear collider with $\sqrt{s}=500$ GeV. In GMSB models a long-lived NLSP is predicted for large value of the supersymmetry breaking scale $\sqrt{F}$. Furthermore in a large portion of the parameter space this particle is a stau. Such heavy charged particles will leave a track in the tracking volume and hit the muonic detector. In order to disentangle this signal from the muon background, we explore kinematics and particle identification tools: time of flight device, dE/dX and Cerenkov devices. We show that a linear collider will be able to detect long-lived staus with masses up to the kinematical limit of the machine. We also present our estimation of the sensitivity to the stau lifetime.
%U http://arxiv.org/abs/hep-ph/0010067v2