dc.contributor.author | Hayrapetyan, A. | |
dc.contributor.author | Tumasyan, A. | |
dc.contributor.author | Adam, W. | |
dc.contributor.author | Andrejkovic, J. W. | |
dc.contributor.author | Bergauer, T. | |
dc.contributor.author | Chatterjee, S. | |
dc.contributor.author | Damanakis, K. | |
dc.contributor.author | Dragicevic, M. | |
dc.contributor.author | Del Valle, A. Escalante | |
dc.contributor.author | Hussain, P. S. | |
dc.contributor.author | Finger, Michael | |
dc.contributor.author | Finger, Miroslav | |
dc.contributor.author | Květoň, Antonín | |
dc.date.accessioned | 2025-03-03T06:15:43Z | |
dc.date.available | 2025-03-03T06:15:43Z | |
dc.date.issued | 2024 | |
dc.identifier.uri | https://hdl.handle.net/20.500.14178/2995 | |
dc.description.abstract | A search is presented for a third-generation leptoquark (LQ) coupled exclusively to a tau lepton and a b quark. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV recorded with the CMS detector, corresponding to an integrated luminosity of 138 fb(-1). Events with tau leptons and a varying number of jets originating from b quarks are considered, targeting the single and pair production of LQs, as well as nonresonant t-channel LQ exchange. An excess is observed in the data with respect to the background expectation in the combined analysis of all search regions. For a benchmark LQ mass of 2 TeV and an LQ-b-tau coupling strength of 2.5, the excess reaches a local significance of up to 2.8 standard deviations. Upper limits at the 95% confidence level are placed on the LQ production cross section in the LQ mass range 0.5-2.3 TeV, and up to 3 TeV for t-channel LQ exchange. Leptoquarks are excluded below masses of 1.22-1.88 TeV for different LQ models and varying coupling strengths up to 2.5. The study of nonresonant tau tau production through t-channel LQ exchange allows lower limits on the LQ mass of up to 2.3 TeV to be obtained.<fig id="Figa" position="anchor" | en |
dc.language.iso | en | |
dc.relation.url | https://doi.org/10.1007/JHEP05(2024)311 | |
dc.rights | Creative Commons Uveďte původ 4.0 International | cs |
dc.rights | Creative Commons Attribution 4.0 International | en |
dc.title | Search for a third-generation leptoquark coupled to a τ lepton and a b quark through single, pair, and nonresonant production in proton-proton collisions at √s=13 TeV | en |
dcterms.accessRights | openAccess | |
dcterms.license | https://creativecommons.org/licenses/by/4.0/legalcode | |
dc.date.updated | 2025-03-03T06:15:43Z | |
dc.subject.keyword | CMS | en |
dc.subject.keyword | Beyond Standard Model | en |
dc.subject.keyword | Hadron-Hadron Scattering | en |
dc.subject.keyword | proton-proton collisions | en |
dc.subject.keyword | √s=13 TeV | en |
dc.relation.fundingReference | info:eu-repo/grantAgreement/MSM/LM/LM2015058 | |
dc.relation.fundingReference | info:eu-repo/grantAgreement/MSM/LG/LG14004 | |
dc.relation.fundingReference | info:eu-repo/grantAgreement/MSM/LM/LM2023040 | |
dc.date.embargoStartDate | 2025-03-03 | |
dc.type.obd | 73 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | |
dc.identifier.doi | 10.1007/JHEP05(2024)311 | |
dc.identifier.utWos | 001288293000001 | |
dc.identifier.obd | 654623 | |
dc.subject.rivPrimary | 10000::10300 | |
dcterms.isPartOf.name | Journal of High Energy Physics | |
dcterms.isPartOf.issn | 1029-8479 | |
dcterms.isPartOf.journalYear | 2024 | |
dcterms.isPartOf.journalVolume | neuveden | |
dcterms.isPartOf.journalIssue | 5 | |
uk.faculty.primaryId | 116 | |
uk.faculty.primaryName | Matematicko-fyzikální fakulta | cs |
uk.faculty.primaryName | Faculty of Mathematics and Physics | en |
uk.department.primaryId | 1251 | |
uk.department.primaryName | Katedra fyziky nízkých teplot | cs |
uk.department.primaryName | Department of Low Temperature Physics | en |
dc.type.obdHierarchyCs | ČLÁNEK V ČASOPISU::článek v časopisu::původní článek | cs |
dc.type.obdHierarchyEn | JOURNAL ARTICLE::journal article::original article | en |
dc.type.obdHierarchyCode | 73::152::206 | en |
uk.displayTitle | Search for a third-generation leptoquark coupled to a τ lepton and a b quark through single, pair, and nonresonant production in proton-proton collisions at √<em>s</em>=13 TeV | en |