Study of stop and sbottom at LHC

Abstract

In supersymmetric models a gluino can decay into $tb{\tilde{\chi }}_1^{\pm }$ through a stop or a sbottom. The decay chain produces an edge structure in the $m_{tb}$ distribution. Monte Carlo simulation studies show that the end point and the edge height would be measured at the CERN LHC by using a sideband subtraction technique. The stop and sbottom masses as well as their decay branching ratios are constrained by the measurement. We study interpretations of the measurement.

Comments: 3 pages, 2 eps files, style files are included, talk at PASCOS'03, Mumbai, India, January 3-8, 2003