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Search for pair production of third-generation leptoquarks decaying into a bottom quark and a τ -lepton with the ATLAS detector ATLAS Collaboration
Abstract
A search for pair-produced scalar or vector leptoquarks decaying into a b-quark and a τ -lepton is presented using the full LHC Run 2 (2015–2018) data sample of 139 fb−1 collected with the ATLAS detector in proton– proton collisions at a centre-of-mass energy of √s = 13 TeV. Events in which at least one τ -lepton decays hadronically are considered, and multivariate discriminants are used to extract the signals. No significant deviations from the Standard Model expectation are observed and 95% confidencelevel upper limits on the production cross-section are derived as a function of leptoquark mass and branching ratio B into a τ -lepton and b-quark. For scalar leptoquarks, masses below 1460 GeV are excluded assuming B = 100%, while for vector leptoquarks the corresponding limit is 1650 GeV (1910 GeV) in the minimal-coupling (Yang–Mills) scenario.
Item Metadata
| Title |
Search for pair production of third-generation leptoquarks decaying into a bottom quark and a τ -lepton with the ATLAS detector
|
| Creator | |
| Publisher |
Springer Berlin Heidelberg
|
| Date Issued |
2023-11-24
|
| Description |
A search for pair-produced scalar or vector leptoquarks decaying into a b-quark and a τ -lepton is presented using the full LHC Run 2 (2015–2018) data sample
of 139 fb−1 collected with the ATLAS detector in proton–
proton collisions at a centre-of-mass energy of √s = 13 TeV.
Events in which at least one τ -lepton decays hadronically
are considered, and multivariate discriminants are used to
extract the signals. No significant deviations from the Standard Model expectation are observed and 95% confidencelevel upper limits on the production cross-section are derived
as a function of leptoquark mass and branching ratio B
into a τ -lepton and b-quark. For scalar leptoquarks, masses
below 1460 GeV are excluded assuming B = 100%, while
for vector leptoquarks the corresponding limit is 1650 GeV
(1910 GeV) in the minimal-coupling (Yang–Mills) scenario.
|
| Genre | |
| Type | |
| Language |
eng
|
| Date Available |
2024-01-02
|
| Provider |
Vancouver : University of British Columbia Library
|
| Rights |
Attribution 4.0 International (CC BY 4.0)
|
| DOI |
10.14288/1.0438365
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| URI | |
| Affiliation | |
| Citation |
The European Physical Journal C. 2023 Nov 24;83(11):1075
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| Publisher DOI |
10.1140/epjc/s10052-023-12104-7
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| Peer Review Status |
Reviewed
|
| Scholarly Level |
Faculty; Researcher
|
| Copyright Holder |
The Author(s)
|
| Rights URI | |
| Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
Attribution 4.0 International (CC BY 4.0)