Title: 
SUSY searches with opposite sign same flavor leptons
   
Speaker: 
Pablo Martinez, ETH

Abstract: 
Experiments at the Large Hadron Collider (LHC) have not found
any significant indication of Beyond the Standard Model Physics (BSM)
after the Run I operation between the years 2010 and 2012 . 
This seminar shows the details of a BSM search in events with two
leptons, jets and missing transverse energy. The data sample corresponds
to an integrated luminosity of 19.4 fb-1 of proton-proton collisions at
a center of mass energy of 8 TeV, collected by the CMS detector at the
CERN LHC in 2012.
The analysis focuses on searches for a kinematic edge in the
invariant mass distribution of the opposite-sign same-flavor lepton
pair and for final states with an on-shell Z boson. The observations
are consistent with expectations from standard model processes. One of
the signal regions shows a deviation of 2.6 sigma with respect the
SM prediction that has attracted the attention of the theory
community. Very recently the ATLAS collaboration has also released
its results on this signature. These results are also briefly discussed
in the seminar.