Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at s = 13 TeV with the ATLAS detector

Atlas Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

A search for pair production of a scalar partner of the top quark in events with four or more jets plus missing transverse momentum is presented. An analysis of 36.1 fb−1 of √ s = 13 TeV proton–proton collisions collected using the ATLAS detector at the LHC yields no significant excess over the expected Standard Model background. To interpret the results a simplified supersymmetric model is used where the top squark is assumed to decay via t1 → t()χ 01 and t1 → bχ ±1 → bW()χ 01, where χ01 (χ ±1 ) denotes the lightest neutralino (chargino). Exclusion limits are placed in terms of the top-squark and neutralino masses. Assuming a branching ratio of 100% to tχ 01, top-squark masses in the range 450−1000 GeV are excluded for χ 01 masses below 160 GeV. In the case where mt1 ∼ mt + mχ 01, top-squark masses in the range 235−590 GeV are excluded.

Original languageEnglish (US)
JournalUnknown Journal
StatePublished - Sep 13 2017

ASJC Scopus subject areas

  • General

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