期刊
PHYSICS LETTERS B
卷 770, 期 -, 页码 357-379出版社
ELSEVIER
DOI: 10.1016/j.physletb.2017.04.031
关键词
CMS; Physics; Heavy ions; Dimuons; Bottomonia
资金
- BMWFW (Austria)
- FWF (Austria)
- FNRS (Belgium)
- FWO (Belgium)
- CNPq (Brazil)
- CAPES (Brazil)
- FAPERJ (Brazil)
- FAPESP (Brazil)
- MES (Bulgaria)
- CERN (China)
- CAS (China)
- MOST (China)
- NSFC (China)
- COLCIEN-CIAS (Colombia)
- MSES (Croatia)
- CSF (Croatia)
- RPF (Cyprus)
- SENESCYT (Ecuador)
- MoER (Estonia)
- ERC IUT (Estonia)
- ERDF (Estonia)
- Academy of Finland (Finland)
- MEC (Finland)
- HIP (Finland)
- CEA (France)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- GSRT (Greece)
- OTKA (Hungary)
- NIH (Hungary)
- DAE (India)
- DST (India)
- IPM (Iran)
- SFI (Ireland)
- INFN (Italy)
- MSIP (Republic of Korea)
- NRF (Republic of Korea)
- LAS (Lithuania)
- MOE (Malaysia)
- UM (Malaysia)
- BUAP (Mexico)
- CINVESTAV (Mexico)
- CONACYT (Mexico)
- LNS (Mexico)
- SEP (Mexico)
- UASLP-FAI (Mexico)
- MBIE (New Zealand)
- PAEC (Pakistan)
- MSHE (Poland)
- NSC (Poland)
- FCT (Portugal)
- JINR (Dubna)
- MON (Russia)
- RosAtom (Russia)
- RAS (Russia)
- RFBR (Russia)
- MESTD (Serbia)
- SEIDI (Spain)
- CPAN (Spain)
- Swiss Funding Agencies (Switzerland)
- MST (Taipei)
- ThEPCenter (Thailand)
- IPST (Thailand)
- STAR (Thailand)
- NSTDA (Thailand)
- TUBITAK (Turkey)
- TAEK (Turkey)
- NASU (Ukraine)
- SFFR (Ukraine)
- STFC (United Kingdom)
- DOE (USA)
- NSF (USA)
- Marie-Curie programme
- European Research Council (European Union)
- EPLANET (European Union)
- Leventis Foundation
- Alfred P. Sloan Foundation
- Alexander von Humboldt Foundation
- Belgian Federal Science Policy Office
- Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
- Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
- Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
- Council of Science and Industrial Research, India
- HOMING PLUS programme of the Foundation for Polish Science
- European Union, Regional Development Fund
- Mobility Plus programme of the Ministry of Science and Higher Education
- National Science Center (Poland) [2014/14/M/ST2/00428, 2013/11/13/ST2/04202, 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2012/07/E/ST2/01406]
- Thalis and Aristeia programmes
- EU-ESF
- Greek NSRF
- National Priorities Research Program by Qatar National Research Fund
- Programa Clarin-COFUND del Principado de Asturias
- Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University (Thailand)
- Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand)
- Welch Foundation [C-1845]
- STFC [ST/H000925/1, PP/E000479/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien
- Division Of Physics [1506130, 1151640, 1211067, 1606321] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1506168, 1404281, 1624356, 1508869] Funding Source: National Science Foundation
- Science and Technology Facilities Council [PP/E000479/1, GRIDPP, ST/H000925/1, CMS] Funding Source: researchfish
The production yields of gamma(1S), gamma(2S), and gamma(3S) quarkonium states are measured through their decays into muon pairs in the CMS detector, in PbPb and pp collisions at the centre-of-mass energy per nucleon pair of 2.76TeV. The data correspond to integrated luminosities of 166 mu b(-1) and 5.4 pb(-1) for PbPb and pp collisions, respectively. Differential production cross sections are reported as functions of gamma rapidity y up to 2.4, and transverse momentum PT up to 20 GeV/c. A strong centrality-dependent suppression is observed in PbPb relative to pp collisions, by factors of up to approximate to 2 and 8, for the gamma(1S) and gamma(2S) states, respectively. No significant dependence of this suppression is observed as a function of y or PT. The gamma(3S) state is not observed in PbPb collisions, which corresponds to a suppression for the centrality-integrated data by at least a factor of approximate to 7 at a 95% confidence level. The observed suppression is in agreement with theoretical scenarios modeling the sequential melting of quarkonium states in a quark gluon plasma. (C) 2017 The Author(s). Published by Elsevier B.V.
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