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Measurement of the cross section and angular correlations for associated production of a Z boson with b hadrons in pp collisions at √s = 7 TeV

ArticleAçık Erişim

Özet

A study of proton-proton collisions in which two b hadrons are produced in association with a Z boson is reported. The collisions were recorded at a centre-of-mass energy of 7TeV with the CMS detector at the LHC, for an integrated luminosity of 5:2 fb-1. The b hadrons are identified by means of displaced secondary vertices, without the use of reconstructed jets, permitting the study of b-hadron pair production at small angular separation. Differential cross sections are presented as a function of the angular separation of the b hadrons and the Z boson. In addition, inclusive measurements are presented. For both the inclusive and differential studies, different ranges of Z boson momentum are considered, and each measurement is compared to the predictions from different event generators at leading-order and next-to-leading-order accuracy. Copyright CERN.

Anahtar Kelimeler

Hadron-hadron scattering
RDL Kalıcı Bağlantı (PID)
https://rdlopen.rawdatalibrary.net/r/ebyu/15952Resmi atıflarda kullanılan kalıcı adres
DOI
https://doi.org/10.1007/jhep12(2013)039Yayıncı 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.authorHörmann, N.
dc.contributor.authorHrubec, J.
dc.contributor.authorJeitler, M.
dc.contributor.authorKiesenhofer, W.
dc.contributor.authorKnünz, V.
dc.contributor.authorKrammer, M.
dc.contributor.authorKrätschmer, I.
dc.contributor.authorLiko, D.
dc.contributor.authorMikulec, I.
dc.contributor.authorRabady, D.
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.authorTreberer-Treberspurg, W.
dc.contributor.authorWaltenberger, W.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorMossolov, V.
dc.contributor.authorShumeiko, N.
dc.contributor.authorSuarez Gonzalez, J.
dc.contributor.authorAlderweireldt, S.
dc.contributor.authorBansal, M.
dc.contributor.authorBansal, S.
dc.contributor.authorCornelis, T.
dc.contributor.authorDeWolf, E.A.
dc.contributor.authorJanssen, X.
dc.contributor.authorKnutsson, A.
dc.contributor.authorLuyckx, S.
dc.contributor.authorMucibello, L.
dc.contributor.authorOchesanu, S.
dc.contributor.authorRoland, B.
dc.contributor.authorRougny, R.
dc.contributor.authorStaykova, Z.
dc.contributor.authorVan Haevermaet, H.
dc.contributor.authorVan Mechelen, P.
dc.contributor.authorVan Remortel, N.
dc.date.accessioned2026-10-18T20:30:47.777216680Z
dc.date.available2026-10-18T20:30:47.777216680Z
dc.date.issued2013
dc.description.abstractA study of proton-proton collisions in which two b hadrons are produced in association with a Z boson is reported. The collisions were recorded at a centre-of-mass energy of 7TeV with the CMS detector at the LHC, for an integrated luminosity of 5:2 fb-1. The b hadrons are identified by means of displaced secondary vertices, without the use of reconstructed jets, permitting the study of b-hadron pair production at small angular separation. Differential cross sections are presented as a function of the angular separation of the b hadrons and the Z boson. In addition, inclusive measurements are presented. For both the inclusive and differential studies, different ranges of Z boson momentum are considered, and each measurement is compared to the predictions from different event generators at leading-order and next-to-leading-order accuracy. Copyright CERN.
dc.description.sponsorshipDeutsche Forschungsgemeinschaft, DFG; National Natural Science Foundation of China, NSFC; Alexander von Humboldt Foundation; , (ST/K001256/1, ST/I505580/1, ST/I005912/1, ST/K001604/1, ST/I000410/1, ST/L00609X/1, ST/F007094/1, ST/I505572/1, ST/J004901/1, ST/G502347/1, ST/H000925/1, ST/F007434/1, ST/F006748/1, ST/K001639/1, ST/I002200/1, ST/K003844/1, ST/J005665/1, ST/H00081X/2); ; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF, (146398, 144921, 146730); Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF; National Science Foundation, NSF, (0906479, 1314131, 1306951, 1151640, 0969555, 1205960, 1211067); National Science Foundation, NSF; , (098-0982887-2878);
dc.identifier.doi10.1007/jhep12(2013)039
dc.identifier.issn1126-6708
dc.identifier.issue12
dc.identifier.scopus2-s2.0-84897838159
dc.identifier.startpage39
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/15952
dc.identifier.volume2013
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 cross section and angular correlations for associated production of a Z boson with b hadrons in pp collisions at √s = 7 TeV
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus34
rdl.oa.statusgold
rdl.source.indexSCOPUS