Speaker
Michael Saelim
(Cornell University)
Description
Despite suggestions from naturalness that stops and gluinos should appear at or below the TeV scale, MET-based LHC searches have not yielded any superpartners so far. Consequently, R-parity violating (RPV) SUSY models have gained renewed interest, especially those imposing the Minimal Flavor Violation (MFV) hypothesis. We consider a simplified model with a light gluino and stop with MFV couplings to light quarks, which predicts a significant rate of events with same-sign dileptons and b-jets. We re-analyze a recent CMS search in this channel, finding that it excludes gluino masses below 800 GeV at 95% confidence level, with only a weak dependence on the stop mass. We also discuss how this search can be further optimized for the RPV/MFV scenario, as MFV stop decays often result in jets with large invariant mass. With the proposed improvements, we estimate that gluino masses up to about 1.4 TeV can be probed at the 14 TeV LHC with 100 fb^-1 of data.
Authors
Flip Tanedo
Joshua Berger
(Cornell University)
Maxim Perelstein
(Cornell)
Michael Saelim
(Cornell University)