Suppression of non-prompt J/ψ, prompt J/ψ, and Y(1S) in PbPb collisions at √sNN = 2.76 TeV

Chatrchyan, S.; Khachatryan, V.; Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.; Ghete, V.M.; Hammer, J.; Hoch, M.; Hörmann, N.; Hrubec, J.; Jeitler, M.; Kiesenhofer, W.; Krammer, M.; Liko, D.; Mikulec, I.; Pernicka, M.; Rahbaran, B.; Rohringer, C.; Rohringer, H.; Schöfbeck, R.; Strauss, J.; Taurok, A.; Teischinger, F.; Wagner, P.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C.-E.; Mossolov, V.; Shumeiko, N.; Suarez Gonzalez, J.; Bansal, S.; Benucci, L.; De Wolf, E.A.; Janssen, X.; Luyckx, S.; Maes, T.; Mucibello, L.; Ochesanu, S.; Roland, B.; Rougny, R.; Selvaggi, M.; Van Haevermaet, H.; Van Mechelen, P.

doi:10.1007/jhep05(2012)063

Suppression of non-prompt J/ψ, prompt J/ψ, and Y(1S) in PbPb collisions at √sNN = 2.76 TeV

ArticleAçık Erişim

Özet

Yields of prompt and non-prompt J/ψ, as well as Y(1S) mesons, are measured by the CMS experiment via their μ+μ- decays in PbPb and pp collisions at √/sNN = 2.76 TeV for quarkonium rapidity |y| < 2.4. Differential cross sections and nuclear modification factors are reported as functions of y and transverse momentum pT, as well as collision centrality. For prompt J/ψ with relatively high pT (6.5 < pT < 30 GeV/c), a strong, centrality-dependent suppression is observed in PbPb collisions, compared to the yield in pp collisions scaled by the number of inelastic nucleon-nucleon collisions. In the same kinematic range, a suppression of non-prompt J/ψ, which is sensitive to the in-medium b-quark energy loss, is measured for the first time. Also the low-pT Y(1S) mesons are suppressed in PbPb collisions. © CERN.

Anahtar Kelimeler

Heavy ions

RDL Kalıcı Bağlantı (PID)

https://rdlopen.rawdatalibrary.net/r/ebyu/15651Resmi atıflarda kullanılan kalıcı adres

DOI

https://doi.org/10.1007/jhep05(2012)063Yayıncı resmi DOI adresi

Tam Kayıt

Alan	Değer	Dil
dc.contributor.author	Chatrchyan, S.
dc.contributor.author	Khachatryan, V.
dc.contributor.author	Sirunyan, A.M.
dc.contributor.author	Tumasyan, A.
dc.contributor.author	Adam, W.
dc.contributor.author	Bergauer, T.
dc.contributor.author	Dragicevic, M.
dc.contributor.author	Erö, J.
dc.contributor.author	Fabjan, C.
dc.contributor.author	Friedl, M.
dc.contributor.author	Frühwirth, R.
dc.contributor.author	Ghete, V.M.
dc.contributor.author	Hammer, J.
dc.contributor.author	Hoch, M.
dc.contributor.author	Hörmann, N.
dc.contributor.author	Hrubec, J.
dc.contributor.author	Jeitler, M.
dc.contributor.author	Kiesenhofer, W.
dc.contributor.author	Krammer, M.
dc.contributor.author	Liko, D.
dc.contributor.author	Mikulec, I.
dc.contributor.author	Pernicka, M.
dc.contributor.author	Rahbaran, B.
dc.contributor.author	Rohringer, C.
dc.contributor.author	Rohringer, H.
dc.contributor.author	Schöfbeck, R.
dc.contributor.author	Strauss, J.
dc.contributor.author	Taurok, A.
dc.contributor.author	Teischinger, F.
dc.contributor.author	Wagner, P.
dc.contributor.author	Waltenberger, W.
dc.contributor.author	Walzel, G.
dc.contributor.author	Widl, E.
dc.contributor.author	Wulz, C.-E.
dc.contributor.author	Mossolov, V.
dc.contributor.author	Shumeiko, N.
dc.contributor.author	Suarez Gonzalez, J.
dc.contributor.author	Bansal, S.
dc.contributor.author	Benucci, L.
dc.contributor.author	De Wolf, E.A.
dc.contributor.author	Janssen, X.
dc.contributor.author	Luyckx, S.
dc.contributor.author	Maes, T.
dc.contributor.author	Mucibello, L.
dc.contributor.author	Ochesanu, S.
dc.contributor.author	Roland, B.
dc.contributor.author	Rougny, R.
dc.contributor.author	Selvaggi, M.
dc.contributor.author	Van Haevermaet, H.
dc.contributor.author	Van Mechelen, P.
dc.date.accessioned	2026-10-18T20:30:30.057259094Z
dc.date.available	2026-10-18T20:30:30.057259094Z
dc.date.issued	2012
dc.description.abstract	Yields of prompt and non-prompt J/ψ, as well as Y(1S) mesons, are measured by the CMS experiment via their μ+μ- decays in PbPb and pp collisions at √/sNN = 2.76 TeV for quarkonium rapidity \|y\| < 2.4. Differential cross sections and nuclear modification factors are reported as functions of y and transverse momentum pT, as well as collision centrality. For prompt J/ψ with relatively high pT (6.5 < pT < 30 GeV/c), a strong, centrality-dependent suppression is observed in PbPb collisions, compared to the yield in pp collisions scaled by the number of inelastic nucleon-nucleon collisions. In the same kinematic range, a suppression of non-prompt J/ψ, which is sensitive to the in-medium b-quark energy loss, is measured for the first time. Also the low-pT Y(1S) mesons are suppressed in PbPb collisions. © CERN.
dc.description.sponsorship	European Commission, EC, (283286); European Commission, EC; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF, (123501, 138111, 134939); Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF; , (ST/I002200/1, ST/I005912/1, ST/H000925/1, ST/J005665/1, ST/F007434/1, ST/K001604/1, ST/I000410/1, ST/F007094/1, ST/G502347/1, ST/F006748/1, ST/I505580/1, ST/J004901/1, ST/I505572/1, ST/H00081X/2); ; National Science Foundation, NSF, (1211067, 1068833); National Science Foundation, NSF; Seventh Framework Programme, FP7, (259612); Seventh Framework Programme, FP7
dc.identifier.doi	10.1007/jhep05(2012)063
dc.identifier.issn	1126-6708
dc.identifier.issue	5
dc.identifier.scopus	2-s2.0-84861856518
dc.identifier.startpage	63
dc.identifier.uri	https://rdlopen.rawdatalibrary.net/r/ebyu/15651
dc.identifier.volume	2012
dc.language.iso	en
dc.publisher	Springer Verlag
dc.relation.ispartof	Journal of High Energy Physics
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Heavy ions
dc.title	Suppression of non-prompt J/ψ, prompt J/ψ, and Y(1S) in PbPb collisions at √sNN = 2.76 TeV
dc.type	Article
dspace.entity.type	Publication
rdl.citation.scopus	211
rdl.oa.status	gold
rdl.source.index	SCOPUS