Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector

The ATLAS collaboration

Research output: Contribution to journalArticlepeer-review

117 Scopus citations

Abstract

The results of a search for pair production of supersymmetric partners of the Standard Model third-generation quarks are reported. This search uses 20.1 fb−1 of pp collisions at √s = 8TeV collected by the ATLAS experiment at the Large Hadron Collider. The lightest bottom and top squarks (b1 and t1 respectively) are searched for in a final state with large missing transverse momentum and two jets identified as originating from b-quarks. No excess of events above the expected level of Standard Model background is found. The results are used to set upper limits on the visible cross section for processes beyond the Standard Model. Exclusion limits at the 95% confidence level on the masses of the third-generation squarks are derived in phenomenological supersymmetric R-parityconserving models in which either the bottom or the top squark is the lightest squark. The b1 is assumed to decay via b1 → bχ0 1 and the t1 via t1 → bχ± 1, with undetectable products of the subsequent decay of the χ± 1 due to the small mass splitting between the χ± 1 and the χ0 1.

Original languageEnglish
Article number189
JournalJournal of High Energy Physics
Volume2013
Issue number10
DOIs
StatePublished - 1 Dec 2013
Externally publishedYes

Keywords

  • Hadron-Hadron scattering
  • Supersymmetry

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint

Dive into the research topics of 'Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector'. Together they form a unique fingerprint.

Cite this