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Inclusive quarkonium production at forward rapidity in pp collisions at √s=8 TeV (CROSBI ID 236268)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

(ALICE Collaboration) Adam, J. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Mudnić, Eugen ; ... et al. Inclusive quarkonium production at forward rapidity in pp collisions at √s=8 TeV // European physical journal C : particles and fields, 76 (2016), 184, 13. doi: 10.1140/epjc/s10052-016-3987-y

Podaci o odgovornosti

Adam, J. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Mudnić, Eugen ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Simatović, Goran ; ... ; Utrobičić, Antonija ; ... ; Vicković, Linda ; ... ; Zyzak, M.

ALICE Collaboration

engleski

Inclusive quarkonium production at forward rapidity in pp collisions at √s=8 TeV

We report on the inclusive production cross sections of J/ψ, ψ(2S), Υ(1S), Υ(2S) and Υ(3S), measured at forward rapidity with the ALICE detector in pp collisions at a center-of-mass energy √s=8 TeV. The analysis is based on data collected at the LHC and corresponds to an integrated luminosity of 1.28 pb−1. Quarkonia are reconstructed in the dimuon-decay channel. The differential production cross sections are measured as a function of the transverse momentum pT and rapidity y, over the pT ranges 0< pT< 20 GeV/c for J/ψ, 0< pT< 12 GeV/c for all other resonances, and for 2.5< y< 4. The cross sections, integrated over pT and y, and assuming unpolarized quarkonia, are σJ/ψ=8.98±0.04±0.82 μb, σψ(2S)=1.23±0.08±0.22 μb, σΥ(1S)=71±6±7 nb, σΥ(2S)=26±5±4 nb and σΥ(3S)=9±4±1 nb, where the first uncertainty is statistical and the second one is systematic. These values agree, within at most 1.4σ, with measurements performed by the LHCb collaboration in the same rapidity range.

quarkonium ; forward rapidity ; proton-proton

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Podaci o izdanju

76

2016.

184

13

objavljeno

1434-6044

1434-6052

10.1140/epjc/s10052-016-3987-y

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Fizika

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