Degenerate SUSY search at the 8 TeV LHC
  ATLAS and CMS collaborations have searched for the supersymmetry (SUSY) in different channels with 7 TeV center-of-mass energy and their search strategies are optimized for the SUSY scenarios with fairly large mass splittings among the sparticles. In absence of any significant deviation of the data from the Standard Model (SM) prediction, stringent bounds are imposed on the squarks and gluino masses in the context of different SUSY scenarios. Since the exact SUSY breaking mechanism is not known, some part of the SUSY spectrum may be degenerate. In this paper, we consider two particular cases of degenerate SUSY spectrum and discuss the impact of ATLAS and CMS SUSY searches on these scenarios. We found that present SUSY search strategies of the ATLAS and CMS collaborations are not optimized for the degenerate SUSY scenarios. Even the LHC with 8 TeV center-of-mass energy can not probe large part of the parameter space of degenerate SUSY scenarios with the present search strategies. 
Biplob Bhattacherjee and Kirtiman Ghosh
hep-ph