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Measurement of the X(3872) production cross section via decays to J/ψπ+π− in pp collisions at √s = 7 TeV

ArticleAçık Erişim

Özet

The production of the X(3872) is studied in pp collisions at √s = 7TeV, using decays to J/ψπ+π−, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8fb−1. The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < pT < 50GeV and rapidity |y| < 1.2. The ratio of the X(3872) and ψ (2S) cross sections times their branching fractions into J/ψπ+π− is measured as a function of pT. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as a function of pT is extracted. The π+π− mass spectrum of the J/ψπ+π− system in the X(3872) decays is also investigated. © 2013, Springer Verlag. All rights reserved.

Anahtar Kelimeler

Hadron-Hadron Scattering
RDL Kalıcı Bağlantı (PID)
https://rdlopen.rawdatalibrary.net/r/ebyu/15597Resmi atıflarda kullanılan kalıcı adres
DOI
https://doi.org/10.1007/jhep04(2013)154Yayıncı 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.authorAguilo, E.
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.authorPernicka, M.
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.authorWaltenberger, W.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorMossolov, V.
dc.contributor.authorShumeiko, N.
dc.contributor.authorSuarez Gonzalez, J.
dc.contributor.authorBansal, M.
dc.contributor.authorBansal, S.
dc.contributor.authorCornelis, T.
dc.contributor.authorDe Wolf, E.A.
dc.contributor.authorJanssen, X.
dc.contributor.authorLuyckx, S.
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.contributor.authorVan Remortel, N.
dc.contributor.authorVan Spilbeeck, A.
dc.date.accessioned2026-10-18T20:30:26.924275019Z
dc.date.available2026-10-18T20:30:26.924275019Z
dc.date.issued2013
dc.description.abstractThe production of the X(3872) is studied in pp collisions at √s = 7TeV, using decays to J/ψπ+π−, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8fb−1. The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < pT < 50GeV and rapidity |y| < 1.2. The ratio of the X(3872) and ψ (2S) cross sections times their branching fractions into J/ψπ+π− is measured as a function of pT. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as a function of pT is extracted. The π+π− mass spectrum of the J/ψπ+π− system in the X(3872) decays is also investigated. © 2013, Springer Verlag. All rights reserved.
dc.description.sponsorship, (ST/H00081X/2); ; National Science Foundation, NSF, (0969555, 1151640, 1205960, 1211067); National Science Foundation, NSF; Science and Technology Facilities Council, STFC, (ST/F007094/1, ST/F007434/1, ST/H000925/1, ST/I005912/1, ST/I505572/1, ST/I505580/1, ST/J004901/1, ST/J005665/1, ST/K001256/1, ST/K001604/1, ST/K001639/1, ST/K003844/1, ST/L00609X/1); Science and Technology Facilities Council, STFC; Schweizerischer Nationalfonds zur F&#x00F6;rderung der Wissenschaftlichen Forschung, SNF, (138111, 144921, 146398); Schweizerischer Nationalfonds zur F&#x00F6;rderung der Wissenschaftlichen Forschung, SNF
dc.identifier.doi10.1007/jhep04(2013)154
dc.identifier.issn1029-8479
dc.identifier.issue4
dc.identifier.scopus2-s2.0-84935906202
dc.identifier.startpage154
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/15597
dc.identifier.volume2013
dc.language.isoen
dc.publisherSpringer Science and Business Media Deutschland GmbH
dc.relation.ispartofJournal of High Energy Physics
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectHadron-Hadron Scattering
dc.titleMeasurement of the X(3872) production cross section via decays to J/ψπ+π− in pp collisions at √s = 7 TeV
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus110
rdl.oa.statusgold
rdl.source.indexSCOPUS