# DPF2015

4-8 August 2015
America/Detroit timezone

## Search for direct scalar top production with R-Parity Violating decay in pp collisions at sqrt(s)=8 TeV with ATLAS

4 Aug 2015, 16:45
15m
Vandenberg (Michigan League)

BSM Collider

### Speaker

Evelyn Jean Thomson (University of Pennsylvania (US))

### Description

A search is presented for direct scalar top pair production, where the scalar tops decay via an R-parity-violating coupling to a final state with two leptons and two identified b jets. The analysis uses 20.3 fb−1 of sqrt(s)= 8 TeV proton-proton collision data collected with the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background. Assuming a supersymmetric minimal B−L extension to the Standard Model, limits on the scalar top mass are placed between 500 GeV and 1 TeV with a branching fraction above 20% for the scalar top to decay to an electron or a muon and a b-quark.
Oral or Poster Presentation Oral

### Primary authors

Brett David Jackson (University of Pennsylvania (US)) Evelyn Jean Thomson (University of Pennsylvania (US)) Leigh Catherine Schaefer (University of Pennsylvania (US)) Zachary Louis Marshall (Lawrence Berkeley National Lab. (US))