Search for leptoquarks decaying into the bt final state in pp collisions at ?s=13 TeV with the ATLAS detector

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dc.contributor.authorAad G.
dc.contributor.authorAbbott B.
dc.contributor.authorAbbott D. C.
dc.contributor.authorAbeling K.
dc.contributor.authorAbidi S. H.
dc.contributor.authorAboulhorma A.
dc.contributor.authorAbramowicz H.
dc.contributor.authorAbreu H.
dc.contributor.authorAbulaiti Y.
dc.contributor.authorAbusleme Hoffman A. C.
dc.contributor.authorAcharya B. S.
dc.contributor.authorAchkar B.
dc.contributor.authorAdam L.
dc.contributor.authorAdam Bourdarios C.
dc.contributor.authorAdamczyk L.
dc.contributor.authorAdamek L.
dc.contributor.authorAddepalli S. V.
dc.contributor.authorAdelman J.
dc.contributor.authorAdiguzel A.
dc.contributor.authorAdorni S.
dc.contributor.authorAdye T.
dc.contributor.authorAffolder A. A.
dc.contributor.authorAfik Y.
dc.contributor.authorAgaras M. N.
dc.contributor.authorAgarwala J.
dc.contributor.authorAggarwal A.
dc.contributor.authorAgheorghiesei C.
dc.contributor.authorAguilar-Saavedra J. A.
dc.contributor.authorAhmad A.
dc.contributor.authorAhmadov F.
dc.contributor.authorAhmed W. S.
dc.contributor.authorAi X.
dc.contributor.authorAielli G.
dc.contributor.authorAizenberg I.
dc.contributor.authorAkbiyik M.
dc.contributor.authorAkesson T. P. A.
dc.contributor.authorAkimov A. V.
dc.contributor.authorAl Khoury K.
dc.contributor.authorAlberghi G. L.
dc.contributor.authorAlbert J.
dc.date.accessioned2025-05-19T16:37:53Z
dc.date.available2025-05-19T16:37:53Z
dc.date.issued2023/10/02
dc.description.abstractA search for leptoquarks decaying into the b tau final state is performed using Run 2 proton-proton collision data from the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb(-1) at root s = 13TeV recorded by the ATLAS detector. The benchmark models considered in this search are vector leptoquarks with electric charge of 2/3e and scalar leptoquarks with an electric charge of 4/3e. No significant excess above the Standard Model prediction is observed, and 95% confidence level upper limits are set on the cross-section times branching fraction of leptoquarks decaying into b tau. For the vector leptoquark production two models are considered: the Yang-Mills and Minimal coupling models. In the Yang-Mills (Minimal coupling) scenario, vector leptoquarks with a mass below 1.58 (1.35) TeV are excluded for a gauge coupling of 1.0 and below 2.05 (1.99) TeV for a gauge coupling of 2.5. In the case of scalar leptoquarks, masses below 1.28 (1.53) TeV are excluded for a Yukawa coupling of 1.0 (2.5). Finally, an interpretation of the results with minimal model dependence is performed for each of the signal region categories, and limits on the visible cross-section for beyond the Standard Model processes are provided.
dc.identifier.doihttp://dx.doi.org/10.1007/JHEP10(2023)001
dc.identifier.issn1029-8479
dc.identifier.urihttps://publicacionesabiertas.userena.cl/handle/123456789/297
dc.languageEnglish
dc.publisherSPRINGER
dc.subjectPAIR PRODUCTION, PLUS PLUS, PHYSICS
dc.titleSearch for leptoquarks decaying into the bt final state in pp collisions at ?s=13 TeV with the ATLAS detector
dc.typeArticle

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