Publication: Inclusive J/psi production at midrapidity in pp collisions at root s=13 Tev
Дата
2021
Авторы
Acharya, S.
Adamova, D.
Adler, A.
Rinella, G. A.
Belyaev, V.
Bogdanov, A.
Bolozdynya, A.
Grigoriev, V.
Kaplin, V.
Kondratyeva, N.
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Аннотация
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.
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Inclusive J/psi production at midrapidity in pp collisions at root s=13 Tev / Acharya, S [et al.] // European Physical Journal C. - 2021. - 81. - № 12. - 10.1140/epjc/s10052-021-09873-4
URI
https://www.doi.org/10.1140/epjc/s10052-021-09873-4
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http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000732555100004
https://openrepository.mephi.ru/handle/123456789/25129