29 September 2015 to 2 October 2015
DESY Hamburg
Europe/Berlin timezone

ATLAS Z + MET Excess in the MSSM

1 Oct 2015, 16:35
15m
Seminar room 4b (DESY Hamburg)

Seminar room 4b

DESY Hamburg

Speaker

Dr Takahiro Terada (The University of Tokyo, DESY)

Description

The ATLAS collaboration recently found a 3 sigma excess in the search for events with large missing transverse energy, jets, and a dilepton peaked on the Z mass region. We study this excess in the minimal supersymmetric standard model (MSSM), especially focusing on the well-motivated split supersymmetry (SUSY) spectrum. We consider the following decay chain: gluino to gluon and Higgsino which subsequently decays to Bino and Z. The first branching ratio is enhanced by the heavy squark loop, and the second branching ratio is enhanced by the quasi-degenerate mass spectrum. The decay topology and the mass spectrum is helpful to circumvent constraints from other SUSY searches. This talk is based on arXiv:1506.07161.

Primary authors

Dr Satoshi Shirai (DESY) Dr Takahiro Terada (The University of Tokyo, DESY) Mr Xiaochuan Lu (UC Berkeley, LBNL)

Presentation Materials