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Measurement of the differential t t ¯ production cross section as a function of the jet mass and extraction of the top quark mass in hadronic decays of boosted top quarks

ArticleAçık Erişim

Özet

A measurement of the jet mass distribution in hadronic decays of Lorentz-boosted top quarks is presented. The measurement is performed in the lepton + jets channel of top quark pair production (t t ¯) events, where the lepton is an electron or muon. The products of the hadronic top quark decay are reconstructed using a single large-radius jet with transverse momentum greater than 400 GeV . The data were collected with the CMS detector at the LHC in proton-proton collisions and correspond to an integrated luminosity of 138 fb-1 . The differential t t ¯ production cross section as a function of the jet mass is unfolded to the particle level and is used to extract the top quark mass. The jet mass scale is calibrated using the hadronic W boson decay within the large-radius jet. The uncertainties in the modelling of the final state radiation are reduced by studying angular correlations in the jet substructure. These developments lead to a significant increase in precision, and a top quark mass of 173.06±0.84GeV . © 2023, The Author(s).

Anahtar Kelimeler

Uncertainty analysisHadronic decaysHadronicsLorentzMass distributionMeasurements ofPair productionProduction cross sectionQuark massTop quarksTransverse momentaBosons
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Tam Kayıt
AlanDeğerDil
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J.W.
dc.contributor.authorBergauer, T.
dc.contributor.authorChatterjee, S.
dc.contributor.authorDamanakis, K.
dc.contributor.authorDragicevic, M.
dc.contributor.authorValle, A. Escalante Del
dc.contributor.authorHussain, P.S.
dc.contributor.authorJeitler, M.
dc.contributor.authorKrammer, N.
dc.contributor.authorLechner, L.
dc.contributor.authorLiko, D.
dc.contributor.authorMikulec, I.
dc.contributor.authorPaulitsch, P.
dc.contributor.authorPitters, F.M.
dc.contributor.authorSchieck, J.
dc.contributor.authorSchöfbeck, R.
dc.contributor.authorSchwarz, D.
dc.contributor.authorTempl, S.
dc.contributor.authorWaltenberger, W.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorDarwish, M.R.
dc.contributor.authorJanssen, T.
dc.contributor.authorKello, T.
dc.contributor.authorSfar, H. Rejeb
dc.contributor.authorMechelen, P. Van
dc.contributor.authorBols, E.S.
dc.contributor.authorD’Hondt, J.
dc.contributor.authorDe Moor, A.
dc.contributor.authorDelcourt, M.
dc.contributor.authorFaham, H. El
dc.contributor.authorLowette, S.
dc.contributor.authorMoortgat, S.
dc.contributor.authorMorton, A.
dc.contributor.authorMüller, D.
dc.contributor.authorSahasransu, A.R.
dc.contributor.authorTavernier, S.
dc.contributor.authorDoninck, W. Van
dc.contributor.authorVannerom, D.
dc.contributor.authorClerbaux, B.
dc.contributor.authorDe Lentdecker, G.
dc.contributor.authorFavart, L.
dc.contributor.authorHohov, D.
dc.contributor.authorJaramillo, J.
dc.contributor.authorLee, K.
dc.contributor.authorMahdavikhorrami, M.
dc.contributor.authorMakarenko, I.
dc.contributor.authorMalara, A.
dc.contributor.authorParedes, S.
dc.date.accessioned2026-10-18T20:27:08.563463717Z
dc.date.available2026-10-18T20:27:08.563463717Z
dc.date.issued2023
dc.description.abstractA measurement of the jet mass distribution in hadronic decays of Lorentz-boosted top quarks is presented. The measurement is performed in the lepton + jets channel of top quark pair production (t t ¯) events, where the lepton is an electron or muon. The products of the hadronic top quark decay are reconstructed using a single large-radius jet with transverse momentum greater than 400 GeV . The data were collected with the CMS detector at the LHC in proton-proton collisions and correspond to an integrated luminosity of 138 fb-1 . The differential t t ¯ production cross section as a function of the jet mass is unfolded to the particle level and is used to extract the top quark mass. The jet mass scale is calibrated using the hadronic W boson decay within the large-radius jet. The uncertainties in the modelling of the final state radiation are reduced by studying angular correlations in the jet substructure. These developments lead to a significant increase in precision, and a top quark mass of 173.06±0.84GeV . © 2023, The Author(s).
dc.description.sponsorship; North Carolina Humanities Council, NCHC; Instituto de Física de Cantabria, IFCA; Parkinson Society Canada, PSC; Istituto Nazionale di Fisica Nucleare Sezione di Padova, INFN; Horizon 2020 Framework Programme, H2020, (884104); Horizon 2020 Framework Programme, H2020; Science and Technology Facilities Council, STFC, (ST/W000490/1); Science and Technology Facilities Council, STFC
dc.identifier.doi10.1140/epjc/s10052-023-11587-8
dc.identifier.issn1434-6044
dc.identifier.issue7
dc.identifier.pmcidPMC10317917
dc.identifier.pmid37432714
dc.identifier.scopus2-s2.0-85182479382
dc.identifier.startpage560
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/12214
dc.identifier.volume83
dc.language.isoen
dc.publisherSpringer Nature
dc.relation.ispartofEuropean Physical Journal C
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectUncertainty analysis
dc.subjectHadronic decays
dc.subjectHadronics
dc.subjectLorentz
dc.subjectMass distribution
dc.subjectMeasurements of
dc.subjectPair production
dc.subjectProduction cross section
dc.subjectQuark mass
dc.subjectTop quarks
dc.subjectTransverse momenta
dc.subjectBosons
dc.titleMeasurement of the differential t t ¯ production cross section as a function of the jet mass and extraction of the top quark mass in hadronic decays of boosted top quarks
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus19
rdl.departmentErzincan Binali Yildirim University, Erzincan, Turkey.
rdl.oa.statusgold
rdl.source.indexSCOPUS
rdl.source.indexPUBMED