Publication: J/psi and psi(2S) production at forward rapidity in p plus p collisions at root s=510 GeV
Дата
2020
Авторы
Acharya, U. A.
Adare, A.
Aidala, C.
Ajitanand, N. N.
Riabov, V.
Samsonov, V.
Taranenko, A.
Journal Title
Journal ISSN
Volume Title
Издатель
Аннотация
The PHENIX experiment at the Relativistic Heavy Ion Collider has measured the differential cross section, mean transverse momentum, mean transverse momentum squared of inclusive J/psi, and cross section ratio of psi(2S) to J/psi at forward rapidity in p + p collisions at root s = 510 GeV via the dimuon decay channel. Comparison is made to inclusive J/psi cross sections measured at root s = 200 GeV and 2.76-13 TeV. The result is also compared to leading-order nonrelativistic QCD calculations coupled to a color-glass-condensate description of the low-x gluons in the proton at low transverse momentum (p(T)) and to next-to-leading order nonrelativistic QCD calculations for the rest of the p(T) range. These calculations overestimate the data at low p(T). While consistent with the data within uncertainties above approximate to 3 GeV/c, the calculations are systematically below the data. The total cross section times the branching ratio is BR d sigma(J/)(psi)(pp) / dy(1.2 < vertical bar y vertical bar < 2.2,0 < p(T) < 10 GeV/c) = 54.3 +/- 0.5(stat) +/- 5.5(syst) nb.
Описание
Ключевые слова
Цитирование
J/psi and psi(2S) production at forward rapidity in p plus p collisions at root s=510 GeV / Acharya, UA [et al.] // Physical Review D. - 2020. - 101. - № 5. - 10.1103/PhysRevD.101.052006
URI
https://www.doi.org/10.1103/PhysRevD.101.052006
https://www.scopus.com/record/display.uri?eid=2-s2.0-85083446113&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000519702600001
https://openrepository.mephi.ru/handle/123456789/20488
https://www.scopus.com/record/display.uri?eid=2-s2.0-85083446113&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000519702600001
https://openrepository.mephi.ru/handle/123456789/20488