期刊
PHYSICS LETTERS B
卷 790, 期 -, 页码 270-293出版社
ELSEVIER
DOI: 10.1016/j.physletb.2019.01.006
关键词
CMS; Physics; Bottomonium; Quarkonium suppression; Quark gluon plasma; Heavy ion collisions
资金
- BMWFW
- FWF
- FNRS
- FWO (Belgium)
- CNPq
- CAPES
- FAPERJ
- FAPESP (Brazil)
- MES (Bulgaria)
- MoST
- NSFC (China)
- COLCIENCIAS (Colombia)
- CSF (Croatia)
- SENESCYT (Ecuador)
- MoER
- ERDF (Estonia)
- Academy of Finland
- MEC
- CEA
- CNRS/IN2P3 (France)
- BMBF
- DFG
- HGF (Germany)
- GSRT (Greece)
- NKFIA (Hungary)
- DAE
- DST
- IPM
- SFI (Ireland)
- INFN (Italy)
- NRF (Republic of Korea)
- MOE
- UM (Malaysia)
- BUAP, CINVESTAV
- CONACYT
- UASLP-FAI (Mexico)
- MBIE (New Zealand)
- PAEC (Pakistan)
- MSHE
- FCT (Portugal)
- JINR (Dubna)
- RFBR
- MESTD (Serbia)
- SEIDI
- FEDER (Spain)
- Swiss Funding Agencies (Switzerland)
- NSTDA (Thailand)
- TUBITAK
- TAEK
- NASU
- SFFR (Ukraine)
- DOE
- NSF (USA)
- Marie-Curie programme
- European Research Council
- Horizon 2020 Grant [675440]
- Leventis Foundation
- A.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 [Harmonia 2014/14/M/ST2/00428, 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, and2015/19/B/ST2/02861]
- Sonata-bis [2012/07/E/ST2/01406]
- National Priorities Research Program by Qatar National Research Fund
- Programa Severo Ochoa del Principado de Asturias
- Thalis
- EU-ESF
- Greek NSRF
- Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University
- Welch Foundation [C-1845]
- Weston Havens Foundation (USA)
- STFC [ST/S000801/1, ST/N001273/1, ST/L005603/1, ST/M004775/1, ST/K003542/1, ST/N000242/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/K003542/1 GRID PP, ST/L005603/1, ST/K003542/1, ST/N000242/1, ST/M004775/1, ST/N001273/1] Funding Source: researchfish
- Austrian Science Fund (FWF) [P28411] Funding Source: Austrian Science Fund (FWF)
The cross sections for gamma(1S), gamma(2S), and gamma(3S) production in lead-lead (PbPb) and proton-proton (pp) collisions at root s(NN) = 5.02 TeV have been measured using the CMS detector at the LHC. The nuclear modification factors, R-AA, derived from the PbPb-to-pp ratio of yields for each state, are studied as functions of meson rapidity and transverse momentum, as well as PbPb collision centrality. The yields of all three states are found to be significantly suppressed, and compatible with a sequential ordering of the suppression, R-AA(T(1S)) > R-AA(gamma(2S)) > R-AA(gamma(3S)). The suppression of gamma(1S) is larger than that seen at root s(NN) = 2.76 TeV, although the two are compatible within uncertainties. The upper limit on the R-AA of gamma(3S) integrated over p(T), rapidity and centrality is 0.096 at 95% confidence level, which is the strongest suppression observed for a quarkonium state in heavy ion collisions to date. (C) 2019 The Author(s). Published by Elsevier B.V.
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