Search for B - L R-parity-violating top squarks in √s=13 TeV pp collisions with the ATLAS experiment

Atlas Collaboration

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A search is presented for the direct pair production of the stop, the supersymmetric partner of the top quark, that decays through an R-parity-violating coupling to a final state with two leptons and two jets, at least one of which is identified as a b-jet. The data set corresponds to an integrated luminosity of 36.1 fb-1 of proton-proton collisions at a center-of-mass energy of √s= 13 TeV, collected in 2015 and 2016 by the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background, and exclusion limits are set on stop pair production at a 95% confidence level. Lower limits on the stop mass are set between 600 GeV and 1.5 TeV for branching ratios above 10% for decays to an electron or muon and a b-quark.

Original languageEnglish (US)
Article number032003
JournalPhysical Review D
Volume97
Issue number3
DOIs
StatePublished - Feb 1 2018

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pair production
parity
quarks
collisions
protons
decay
exclusion
center of mass
leptons
muons
confidence
luminosity
detectors
electrons
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Search for B - L R-parity-violating top squarks in √s=13 TeV pp collisions with the ATLAS experiment. / Atlas Collaboration.

In: Physical Review D, Vol. 97, No. 3, 032003, 01.02.2018.

Research output: Contribution to journalArticle

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abstract = "A search is presented for the direct pair production of the stop, the supersymmetric partner of the top quark, that decays through an R-parity-violating coupling to a final state with two leptons and two jets, at least one of which is identified as a b-jet. The data set corresponds to an integrated luminosity of 36.1 fb-1 of proton-proton collisions at a center-of-mass energy of √s= 13 TeV, collected in 2015 and 2016 by the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background, and exclusion limits are set on stop pair production at a 95{\%} confidence level. Lower limits on the stop mass are set between 600 GeV and 1.5 TeV for branching ratios above 10{\%} for decays to an electron or muon and a b-quark.",
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AU - Aad, G.

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AU - Abdinov, O.

AU - Abeloos, B.

AU - Abidi, S. H.

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