Journal
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
Volume 41, Issue 11, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0954-3899/41/11/115002
Keywords
QCD; diffraction; charmonia
Categories
Funding
- CERN
- national agency: CAPES (Brazil)
- national agency: CNPq (Brazil)
- national agency: FAPERJ (Brazil)
- national agency: FINEP (Brazil)
- NSFC (China)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- MPG (Germany)
- SFI (Ireland)
- INFN (Italy)
- FOM (The Netherlands)
- NWO (The Netherlands)
- MNiSW (Poland)
- NCN (Poland)
- MEN/IFA (Romania)
- MinES (Russia)
- FANO (Russia)
- MinECo (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NASU (Ukraine)
- STFC (United Kingdom)
- NSF (USA)
- IN2P3 (France)
- KIT (Germany)
- SURF (The Netherlands)
- PIC (Spain)
- GridPP (United Kingdom)
- EPLANET
- Marie Sklodowska-Curie Actions
- ERC (European Union)
- Conseil general de Haute-Savoie
- Labex ENIGMASS
- OCEVU
- Region Auvergne (France)
- RFBR (Russia)
- XuntaGal
- GENCAT (Spain)
- Royal Society and Royal Commission for the Exhibition of 1851 (United Kingdom)
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205805] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/H00100X/2, ST/L001144/1, ST/J500641/1, 1225304, ST/K003410/1, ST/K003534/1, 1364044, ST/K001310/1, ST/J004332/1, GRIDPP, ST/K00073X/1, ST/L003392/1, ST/K001310/1 ATLAS Upgrades, ST/K00140X/1 LHCb, ST/K001361/1 ATLAS Upgrades, ST/K003534/1 GRIDPP, 1208164, LHCb, PP/E003095/1, PP/E000355/1, ST/H00100X/1, ST/I003576/1, ST/K001361/1 LHCb, ST/K001310/1 LHCb, ST/K00140X/1, 1369397, ST/K001310/1 LHCb Upgrades, ST/H006737/1, ST/K000705/1, ST/F007094/1, ST/J005495/1, ST/K001418/1, ST/J004855/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/L003112/1, ST/L00352X/1, ST/H001093/1, 1225314, ST/L006146/1, ST/K502236/1, ST/K001361/1, ST/K001302/1, 1415632, 1299204, ST/K001256/1, ST/M000761/1, ST/K001361/1 ATLAS, ST/L001195/1, LHCb Upgrades, 1096173, ST/M001474/1, ST/I505572/1, ST/L003538/1, ST/G005974/1, ST/H001026/2, 1416165, ST/K001310/1 ATLAS, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/H001026/1, ST/M001431/1, ST/K00137X/1, ST/L006340/1, ST/H001093/2, ST/I000097/1] Funding Source: researchfish
Ask authors/readers for more resources
A search is performed for the central exclusive production of pairs of charmonia produced in proton-proton collisions. Using data corresponding to an integrated luminosity of 3 fb(-1) collected at centre-of-mass energies of 7 and 8 TeV, J/psi J/psi and J/psi psi (2S) pairs are observed, which have been produced in the absence of any other activity inside the LHCb acceptance that is sensitive to charged particles in the pseudorapidity ranges (-3.5,-1.5) and (1.5, 5.0). Searches are also performed for pairs of P-wave charmonia and limits are set on their production. The cross-sections for these processes, where the dimeson system has a rapidity between 2.0 and 4.5, are measured to be sigma (J/psi J/psi) = 58 +/- 10(stat) +/- 6(syst) pb, sigma(J/psi psi(2S)) = 63(-18)(+27)(stat) +/- 10(syst) pb, sigma(psi(2S)psi(2S)) < 237 pb, sigma(chi)(chi)(C0)(C0) < 69 nb, sigma(chi)(chi)(C1)(C1) < 45 pb, sigma(chi)(chi)(C2)(C2) < 141 pb, where the upper limits are set at the 90% confidence level. The measured J/psi J/psi and J/psi psi (2S) cross-sections are consistent with theoretical expectations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available