Combination of searches for pair-produced leptoquarks at √s = 13 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1016/j.physletb.2024.138736

Combination of searches for pair-produced leptoquarks at √s = 13 TeV with the ATLAS detector

ATLAS Collaboration

Physics and Astronomy

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Abstract

A statistical combination of various searches for pair-produced leptoquarks is presented, using the full LHC Run 2 (2015-2018) data set of 139 fb⁻¹ collected with the ATLAS detector from proton-proton collisions at a centre-of-mass energy of √s = 13 TeV. All possible decays of the leptoquarks into quarks of the third generation and charged or neutral leptons of any generation are investigated. Since no significant deviations from the Standard Model expectation are observed in any of the individual analyses, combined exclusion limits are set on the production cross-sections for scalar and vector leptoquarks. The resulting lower bounds on leptoquark masses exceed those from the individual analyses by up to 100 GeV, depending on the signal hypothesis.

Original language	English
Article number	138736
Number of pages	24
Journal	Physics Letters B
Volume	854
Early online date	22 May 2024
DOIs	https://doi.org/10.1016/j.physletb.2024.138736
Publication status	Published - Jul 2024

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@article{5d4835196607430995702e37e5eb798f,

title = "Combination of searches for pair-produced leptoquarks at √s = 13 TeV with the ATLAS detector",

abstract = "A statistical combination of various searches for pair-produced leptoquarks is presented, using the full LHC Run 2 (2015-2018) data set of 139 fb−1 collected with the ATLAS detector from proton-proton collisions at a centre-of-mass energy of √s = 13 TeV. All possible decays of the leptoquarks into quarks of the third generation and charged or neutral leptons of any generation are investigated. Since no significant deviations from the Standard Model expectation are observed in any of the individual analyses, combined exclusion limits are set on the production cross-sections for scalar and vector leptoquarks. The resulting lower bounds on leptoquark masses exceed those from the individual analyses by up to 100 GeV, depending on the signal hypothesis.",

author = "{ATLAS Collaboration} and P.P. Allport and A.D. Auriol and P. Bellos and J. Bracinik and D.G. Charlton and A.S. Chisholm and L. Gonella and C.M. Hawkes and K. Krizka and J.D. Lomas and M. Marinescu and T.J. Neep and P.R. Newman and K. Nikolopoulos and E. Skorda and J.P. Thomas and P.D. Thompson and R.J. Ward and A.T. Watson and M.F. Watson and C. Wu",

year = "2024",

month = jul,

doi = "10.1016/j.physletb.2024.138736",

language = "English",

volume = "854",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

}

TY - JOUR

T1 - Combination of searches for pair-produced leptoquarks at √s = 13 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Allport, P.P.

AU - Auriol, A.D.

AU - Bellos, P.

AU - Bracinik, J.

AU - Charlton, D.G.

AU - Chisholm, A.S.

AU - Gonella, L.

AU - Hawkes, C.M.

AU - Krizka, K.

AU - Lomas, J.D.

AU - Marinescu, M.

AU - Neep, T.J.

AU - Newman, P.R.

AU - Nikolopoulos, K.

AU - Skorda, E.

AU - Thomas, J.P.

AU - Thompson, P.D.

AU - Ward, R.J.

AU - Watson, A.T.

AU - Watson, M.F.

AU - Wu, C.

PY - 2024/7

Y1 - 2024/7

N2 - A statistical combination of various searches for pair-produced leptoquarks is presented, using the full LHC Run 2 (2015-2018) data set of 139 fb−1 collected with the ATLAS detector from proton-proton collisions at a centre-of-mass energy of √s = 13 TeV. All possible decays of the leptoquarks into quarks of the third generation and charged or neutral leptons of any generation are investigated. Since no significant deviations from the Standard Model expectation are observed in any of the individual analyses, combined exclusion limits are set on the production cross-sections for scalar and vector leptoquarks. The resulting lower bounds on leptoquark masses exceed those from the individual analyses by up to 100 GeV, depending on the signal hypothesis.

AB - A statistical combination of various searches for pair-produced leptoquarks is presented, using the full LHC Run 2 (2015-2018) data set of 139 fb−1 collected with the ATLAS detector from proton-proton collisions at a centre-of-mass energy of √s = 13 TeV. All possible decays of the leptoquarks into quarks of the third generation and charged or neutral leptons of any generation are investigated. Since no significant deviations from the Standard Model expectation are observed in any of the individual analyses, combined exclusion limits are set on the production cross-sections for scalar and vector leptoquarks. The resulting lower bounds on leptoquark masses exceed those from the individual analyses by up to 100 GeV, depending on the signal hypothesis.

U2 - 10.1016/j.physletb.2024.138736

DO - 10.1016/j.physletb.2024.138736

M3 - Letter

SN - 0370-2693

VL - 854

JO - Physics Letters B

JF - Physics Letters B

M1 - 138736

ER -

Combination of searches for pair-produced leptoquarks at √s = 13 TeV with the ATLAS detector

Abstract

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