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Measurement of the mass difference between top and antitop quarks

ArticleAçık Erişim

Özet

A measurement of the mass difference between the top and the antitop quark (Δmt = mt - mt) is performed using events with a muon or an electron and at least four jets in the final state. The analysis is based on data collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4:96±0:11 fb-1, and yields the value of δmt = -0:44±0:46 (stat.)±0:27 (syst.) GeV. This result is consistent with equality of particle and antiparticle masses required by CPT invariance, and provides a significantly improved precision relative to existing measurements. © Copyright CERN.

Anahtar Kelimeler

Hadron-Hadron Scattering
RDL Kalıcı Bağlantı (PID)
https://rdlopen.rawdatalibrary.net/r/ebyu/15937Resmi atıflarda kullanılan kalıcı adres
DOI
https://doi.org/10.1007/jhep06(2012)109Yayıncı resmi DOI adresi
Tam Kayıt
AlanDeğerDil
dc.contributor.authorChatrchyan, S.
dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A.M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorBergauer, T.
dc.contributor.authorDragicevic, M.
dc.contributor.authorErö, J.
dc.contributor.authorFabjan, C.
dc.contributor.authorFriedl, M.
dc.contributor.authorFrühwirth, R.
dc.contributor.authorGhete, V.M.
dc.contributor.authorHammer, J.
dc.contributor.authorHörmann, N.
dc.contributor.authorHrubec, J.
dc.contributor.authorJeitler, M.
dc.contributor.authorKiesenhofer, W.
dc.contributor.authorKrammer, M.
dc.contributor.authorLiko, D.
dc.contributor.authorMikulec, I.
dc.contributor.authorPernicka, M.
dc.contributor.authorRahbaran, B.
dc.contributor.authorRohringer, C.
dc.contributor.authorRohringer, H.
dc.contributor.authorSchöfbeck, R.
dc.contributor.authorStrauss, J.
dc.contributor.authorTaurok, A.
dc.contributor.authorTeischinger, F.
dc.contributor.authorWagner, P.
dc.contributor.authorWaltenberger, W.
dc.contributor.authorWalzel, G.
dc.contributor.authorWidl, E.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorMossolov, V.
dc.contributor.authorShumeiko, N.
dc.contributor.authorSuarez Gonzalez, J.
dc.contributor.authorBansal, S.
dc.contributor.authorCerny, K.
dc.contributor.authorCornelis, T.
dc.contributor.authorDe Wolf, E.A.
dc.contributor.authorJanssen, X.
dc.contributor.authorLuyckx, S.
dc.contributor.authorMaes, T.
dc.contributor.authorMucibello, L.
dc.contributor.authorOchesanu, S.
dc.contributor.authorRoland, B.
dc.contributor.authorRougny, R.
dc.contributor.authorSelvaggi, M.
dc.contributor.authorVan Haevermaet, H.
dc.contributor.authorVan Mechelen, P.
dc.date.accessioned2026-10-18T20:30:46.947221424Z
dc.date.available2026-10-18T20:30:46.947221424Z
dc.date.issued2012
dc.description.abstractA measurement of the mass difference between the top and the antitop quark (Δmt = mt - mt) is performed using events with a muon or an electron and at least four jets in the final state. The analysis is based on data collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4:96±0:11 fb-1, and yields the value of δmt = -0:44±0:46 (stat.)±0:27 (syst.) GeV. This result is consistent with equality of particle and antiparticle masses required by CPT invariance, and provides a significantly improved precision relative to existing measurements. © Copyright CERN.
dc.description.sponsorshipEuropean Commission, EC, (302103); European Commission, EC; , (ST/F007094/1, ST/H000925/1, ST/F006748/1, ST/I000410/1, ST/K000748/1, ST/I505572/1, ST/H001085/1, ST/J004901/1, ST/I505580/1, ST/I005912/1, ST/F007434/1, ST/J005568/1, ST/J005665/1, ST/K00137X/1, ST/I002200/1, ST/G502347/1, ST/H001085/2, ST/K00140X/1, ST/K001604/1, ST/H00081X/2); ; UK Research and Innovation, UKRI, (53706); UK Research and Innovation, UKRI; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF, (134939, 123501); Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF
dc.identifier.doi10.1007/jhep06(2012)109
dc.identifier.issn1126-6708
dc.identifier.issue6
dc.identifier.scopus2-s2.0-84864461222
dc.identifier.startpage109
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/15937
dc.identifier.volume2012
dc.language.isoen
dc.publisherSpringer Verlag
dc.relation.ispartofJournal of High Energy Physics
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectHadron-Hadron Scattering
dc.titleMeasurement of the mass difference between top and antitop quarks
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus17
rdl.oa.statusgold
rdl.source.indexSCOPUS