Inclusive J/psi production at midrapidity in pp collisions at root s=13 Tev

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http://hdl.handle.net/10138/338294

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The ALICE Collaboration , Acharya , S , Adamova , D , Kim , D J , Krizek , F , Molander , M A , Novitzky , N , Onnerstad , A , Parkkila , J E , Rytkönen , H M , Räsänen , S , Saarimäki , O A M , Slupecki , M & Trzaska , W H 2021 , ' Inclusive J/psi production at midrapidity in pp collisions at root s=13 Tev ' , European Physical Journal C. Particles and Fields , vol. 81 , no. 12 , 1121 . https://doi.org/10.1140/epjc/s10052-021-09873-4

Titel: Inclusive J/psi production at midrapidity in pp collisions at root s=13 Tev
Författare: The ALICE collaboration; Acharya, S.; Adamova, D.; Kim, D. J.; Krizek, F.; Molander, Mikael Andreas; Novitzky, Norbert; Onnerstad, A.; Parkkila, J. E.; Rytkönen, Heidi Maria; Räsänen, Sami; Saarimäki, Oskari Antti Matti; Slupecki, M.; Trzaska, W. H.
Upphovmannens organisation: Helsinki Institute of Physics
Datum: 2021-12-21
Språk: eng
Sidantal: 18
Tillhör serie: European Physical Journal C. Particles and Fields
ISSN: 1434-6044
DOI: https://doi.org/10.1140/epjc/s10052-021-09873-4
Permanenta länken (URI): http://hdl.handle.net/10138/338294
Abstrakt: We report on the inclusive J/psi production cross section measured at the CERN Large Hadron Collider in proton-proton collisions at a center-of-mass energy root s = 13 TeV. The J/psi mesons are reconstructed in the e(+)e(-) decay channel and the measurements are performed at midrapidity (vertical bar y vertical bar < 0.9) in the transverse-momentum interval 0 < p(T) < 40 GeV/c, using a minimum-bias data sample corresponding to an integrated luminosity L-i(nt) = 32.2 nb(-1) and an Electromagnetic Calorimeter triggered data sample with L-i(nt) = 8.3 pb(-1). The p(T)-integrated J/psi production cross section at midrapidity, computed using the minimumbias data sample, is d sigma/dy vertical bar(y) =0 = 8.97 +/- 0.24 (stat) 0.48 (syst) +/- 0.15 (lumi) mu b. An approximate logarithmic dependence with the collision energy is suggested by these results and available world data, in agreement with model predictions. The integrated and p(T)-differential measurements are compared with measurements in pp collisions at lower energies and with several recent phenomenological calculations based on the non-relativistic QCD and Color Evaporation models.
Subject: 114 Physical sciences
J-PSI
QUARKONIUM PRODUCTION
HADRONIC PRODUCTION
UPSILON
MULTIPLICITY
DEPENDENCE
RAPIDITY
Referentgranskad: Ja
Licens: cc_by
Användningsbegränsning: openAccess
Parallelpublicerad version: publishedVersion


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