期刊
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
卷 41, 期 5, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/0954-3899/41/5/055002
关键词
inclusive production with identified hadrons; quarkonia; QCD; diffraction; central exclusive production
资金
- CERN
- CAPES (Brazil)
- CNPq (Brazil)
- FAPERJ (Brazil)
- FINEP (Brazil)
- NSFC (China)
- CNRS/IN2P3 (France)
- Region Auvergne (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- MPG (Germany)
- SFI (Ireland)
- INFN (Italy)
- FOM (The Netherlands)
- NWO (The Netherlands)
- SCSR (Poland)
- MEN/IFA (Romania)
- MinES (Russia)
- Rosatom (Russia)
- RFBR (Russia)
- NRC 'Kurchatov Institute' (Russia)
- MinECo (Spain)
- XuntaGal (Spain)
- GENCAT (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NAS Ukraine (Ukraine)
- STFC (United Kingdom)
- NSF (USA)
- ERC under FP7
- IN2P3 (France)
- KIT (Germany)
- SURF (The Netherlands)
- PIC (Spain)
- GridPP (United Kingdom)
- STFC [ST/H006737/1, ST/H001026/1, ST/H001093/1, ST/I003576/1, ST/J004855/1, ST/H001085/1, ST/L003392/1, ST/I000097/1, ST/F007094/1, ST/H001069/2, ST/L006146/1, ST/J005568/1, ST/K003534/1, PP/E003095/1, ST/J005495/1, ST/K00140X/1, ST/L001144/1, ST/H001085/2, ST/K001361/1, ST/K003593/1, LHCb Upgrades, ST/I505572/1, LHCb, ST/J004332/1, ST/K502236/1, ST/K000748/1, ST/M001431/1, ST/H001093/2, ST/K003410/1, ST/K004646/1, ST/K00073X/1, ST/K00137X/1, ST/H001026/2, ST/G005974/1, ST/K001604/1, PP/E000347/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/L006146/1, ST/K502236/1, ST/H006737/1, ST/K001604/1 DMUK, ST/J005568/1, ST/K003410/1, ST/I000097/1, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP, ST/L001144/1, 1225304, ST/K003534/1, ST/K001604/1 MICE/UKNF, ST/J004332/1, ST/K000748/1, GRIDPP, ST/K00073X/1, ST/L003392/1, ST/K00140X/1 LHCb, ST/K001361/1 ATLAS Upgrades, ST/K003534/1 GRIDPP, 1208164, LHCb, ST/K004646/1, PP/E003095/1, ST/I003576/1, ST/K001361/1 LHCb, ST/K00140X/1, ST/H001085/2, ST/F007094/1, ST/K001604/1, ST/J005495/1, ST/K001418/1, ST/H001093/2, ST/K001604/1 T2K, ST/K00137X/1, ST/J004855/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/H001093/1, 1225314, ST/K001361/1, ST/K003593/1, ST/K001604/1 CMS Upgrade, 1299204, ST/K001256/1, ST/K001604/1 SuperNEMO, ST/K001361/1 ATLAS, ST/K001604/1 LHCb, LHCb Upgrades, 1096173, ST/M001474/1, ST/I505572/1, ST/G005974/1, ST/H001085/1, ST/H001026/2, 1416165, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/H001026/1, ST/M001431/1, ST/K003593/1 GRIDPP] Funding Source: researchfish
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205805] Funding Source: National Science Foundation
The differential cross-section as a function of rapidity has been measured for the exclusive production of J/psi and psi(2S) mesons in proton-proton collisions at root s = 7 TeV, using data collected by the LHCb experiment, corresponding to an integrated luminosity of 930 pb(-1). The cross-sections times branching fractions to two muons having pseudorapidities between 2.0 and 4.5 are measured to be sigma (pp -> J/psi -> mu+mu-)(2.0 < eta(mu +/-) < 4.5) = 291 +/- 7 +/- 19 pb, sigma (pp ->psi(2S)->mu+mu-)(2.0 < eta(mu +/-) < 4.5) = 6.5 +/- 0.9 +/- 0.4 pb, where the first uncertainty is statistical and the second is systematic. The measurements agree with next-to-leading order QCD predictions as well as with models that include saturation effects.
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