期刊
PHYSICAL REVIEW LETTERS
卷 109, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.222301
关键词
-
资金
- BMWF
- FWF (Austria)
- FNRS
- FWO (Belgium)
- CNPq
- CAPES
- FAPERJ
- FAPESP (Brazil)
- MES (Bulgaria)
- CERN
- CAS
- MoST
- NSFC (China)
- COLCIENCIAS (Colombia)
- MSES (Croatia)
- RPF (Cyprus)
- MEYS (Czech Republic)
- MoER
- ERDF (Estonia)
- Academy of Finland
- MEC
- HIP (Finland)
- CEA
- CNRS/IN2P3 (France)
- BMBF
- DFG
- HGF (Germany)
- GSRT (Greece)
- OTKA
- NKTH (Hungary)
- DAE
- DST (India)
- IPM (Iran)
- SFI (Ireland)
- INFN (Italy)
- NRF
- WCU (Korea)
- LAS (Lithuania)
- CINVESTAV
- CONACYT
- SEP
- UASLP-FAI (Mexico)
- MSI (New Zealand)
- PAEC (Pakistan)
- MSHE
- NSC (Poland)
- FCT (Portugal)
- JINR (Armenia, Belarus, Georgia, Ukraine, and Uzbekistan)
- MON
- RosAtom
- RAS
- Agencies (Switzerland)
- NSC (Taipei)
- TUBITAK
- TAEK (Turkey)
- NASU (Ukraine)
- STFC (United Kingdom)
- DOE
- NSF (USA)
- [SF0690030s09]
- STFC [ST/K000616/1, ST/H000925/1, ST/F006748/1, ST/J004820/1, ST/I000410/1, ST/I005912/1, ST/I505580/1, ST/J005665/1, ST/G502347/1, ST/I002839/1, ST/F007094/1, ST/G502412/1, ST/K001604/1, ST/J005614/1, ST/F007434/1, ST/I505572/1, ST/I002200/1, PP/E002722/1, ST/J004901/1, ST/H00081X/2, ST/L001225/1] Funding Source: UKRI
- Science and Technology Facilities Council [CMS, ST/G502347/1, ST/F007434/1, ST/K001604/1 DMUK, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP, ST/J005614/1, ST/K001604/1 MICE/UKNF, ST/H000925/1, GRIDPP, ST/I005912/1, ST/G502412/1, ST/I003622/1 GRIDPP, ST/K001604/1 LHCb, ST/F007094/1, ST/J005665/1, ST/H00081X/2, ST/K001604/1, ST/K001604/1 SuperNEMO, ST/F006748/1, PP/D004284/1, ST/I505572/1, ST/I000410/1, ST/L001225/1, ST/J004901/1, ST/I005912/1 GRIDPP, ST/K000616/1, ST/K001604/1 CMS Upgrade, ST/I002839/1, ST/K001256/1, ST/I505580/1, ST/J004820/1, PP/E002722/1, ST/K001604/1 T2K, ST/I002200/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien [1068833] Funding Source: National Science Foundation
- Division Of Physics [1068833] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1067907] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1211067, 0969555] Funding Source: National Science Foundation
The suppression of the individual gamma (nS) states in PbPb collisions with respect to their yields in pp data has been measured. The PbPb and pp data sets used in the analysis correspond to integrated luminosities of 150 mu b(-1) and 230 nb(-1), respectively, collected in 2011 by the CMS experiment at the LHC, at a center-of-mass energy per nucleon pair of 2.76 TeV. The gamma (nS) yields are measured from the dimuon invariant mass spectra. The suppression of the gamma (nS) yields in PbPb relative to the yields in pp, scaled by the number of nucleon-nucleon collisions, R-AA, is measured as a function of the collision centrality. Integrated over centrality, the R-AA values are 0.56 +/- 0.08(stat) +/- 0.07(syst), 0.12 +/- 0.04(stat) +/- 0.02(syst), and lower than 0.10 (at 95% confidence level), for the gamma (1S), gamma (2S), and gamma (3S) states, respectively. The results demonstrate the sequential suppression of the gamma (nS) states in PbPb collisions at LHC energies.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据