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

Philip James Clark; Sinead Farrington; Michele Faucci Giannelli; Yanyan Gao; Ahmed Hasib; Christos Leonidopoulos; Victoria Jane Martin; Liza Mijović; Corrinne Mills; Benjamin Wynne; Atlas Collaboration

doi:10.1103/PhysRevD.97.032003

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

Philip James Clark, Sinead Farrington, Michele Faucci Giannelli, Yanyan Gao, Ahmed Hasib, Christos Leonidopoulos, Victoria Jane Martin, Liza Mijović, Corrinne Mills, Benjamin Wynne, Atlas Collaboration

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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 dataset corresponds to an integrated luminosity of 36.1 fb$^{-1}$ of proton-proton collisions at a center-of-mass energy of $\sqrt{s} = 13$ 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 language	English
Article number	032003
Journal	Physical Review D, particles, fields, gravitation, and cosmology
Volume	D97
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.97.032003
Publication status	Published - 7 Feb 2018

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10.1103/PhysRevD.97.032003

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Clark, P. J., Farrington, S., Faucci Giannelli, M., Gao, Y., Hasib, A., Leonidopoulos, C., Martin, V. J., Mijović, L., Mills, C., Wynne, B., & Collaboration, A. (2018). Search for B-L R -parity-violating top squarks in $\sqrt s$ =13 TeV pp collisions with the ATLAS experiment. Physical Review D, particles, fields, gravitation, and cosmology, D97(3), Article 032003. https://doi.org/10.1103/PhysRevD.97.032003

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title = "Search for B-L R -parity-violating top squarks in $\sqrt s$ =13 TeV pp collisions with the ATLAS experiment",

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 dataset corresponds to an integrated luminosity of 36.1 fb$^{-1}$ of proton-proton collisions at a center-of-mass energy of $\sqrt{s} = 13$ 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.",

author = "Clark, {Philip James} and Sinead Farrington and {Faucci Giannelli}, Michele and Yanyan Gao and Ahmed Hasib and Christos Leonidopoulos and Martin, {Victoria Jane} and Liza Mijovi{\'c} and Corrinne Mills and Benjamin Wynne and Atlas Collaboration",

year = "2018",

month = feb,

day = "7",

doi = "10.1103/PhysRevD.97.032003",

language = "English",

volume = "D97",

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issn = "0556-2821",

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Clark, PJ , Farrington, S, Faucci Giannelli, M, Gao, Y, Hasib, A, Leonidopoulos, C , Martin, VJ , Mijović, L, Mills, C, Wynne, B & Collaboration, A 2018, 'Search for B-L R -parity-violating top squarks in $\sqrt s$ =13 TeV pp collisions with the ATLAS experiment', Physical Review D, particles, fields, gravitation, and cosmology, vol. D97, no. 3, 032003. https://doi.org/10.1103/PhysRevD.97.032003

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T1 - Search for B-L R -parity-violating top squarks in $\sqrt s$ =13 TeV pp collisions with the ATLAS experiment

AU - Clark, Philip James

AU - Farrington, Sinead

AU - Faucci Giannelli, Michele

AU - Gao, Yanyan

AU - Hasib, Ahmed

AU - Leonidopoulos, Christos

AU - Martin, Victoria Jane

AU - Mijović, Liza

AU - Mills, Corrinne

AU - Wynne, Benjamin

AU - Collaboration, Atlas

PY - 2018/2/7

Y1 - 2018/2/7

N2 - 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 dataset corresponds to an integrated luminosity of 36.1 fb$^{-1}$ of proton-proton collisions at a center-of-mass energy of $\sqrt{s} = 13$ 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.

AB - 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 dataset corresponds to an integrated luminosity of 36.1 fb$^{-1}$ of proton-proton collisions at a center-of-mass energy of $\sqrt{s} = 13$ 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.

U2 - 10.1103/PhysRevD.97.032003

DO - 10.1103/PhysRevD.97.032003

M3 - Article

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VL - D97

JO - Physical Review D, particles, fields, gravitation, and cosmology

JF - Physical Review D, particles, fields, gravitation, and cosmology

IS - 3

M1 - 032003

ER -

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

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