Checkmating natural supersymmetry at the LHC

por Dr. Jong Soo Kim (IFT Madrid)

lunes 19 oct. 2015 15:00 → 16:00 Europe/Madrid

4-4-4426 - Seminari Física Teòrica (Campus Burjassot)

In this talk, I present limits on natural supersymmetry inspired scenarios based on current searches at the LHC. I consider a set of 22000 model points in a six dimensional natural supersymmetry parameter space. The resulting mass spectra consists of higgsinos as the lightest supersymmetric particle, light third generation SU(2) doublet squarks and SU(2) singlet stops as well as gluinos while assuming a Standard Model like Higgs boson. All remaining supersymmetric particles are decoupled. I employ a large number of current natural supersymmetry as well as inclusive searches at the LHC. I demonstrate the importance of combining searches for deriving limits on a general natural supersymmetric model. Mass limits on the gluino as well as third generation supersymmetric particles as a function of the lightest supersymmetric particle mass are presented. Moreover, I will discuss possible consequences for the LHC at 14 TeV. The numerical study is done with our computer tool CheckMATE. I will briefly introduce the program which accepts simulated event files in many formats for any model. The program then determines whether the model is excluded or not at 95% C.L. by comparing to many recent experimental analyses at the LHC. Furthermore the program can calculate confidence limits and provide detailed information about signal regions of interest.