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001-es BibID:	BIBFORM121222
035-os BibID:	(WoS)000440140300003 (Scopus)85051023565
Első szerző:	PHENIX Collaboration
Cím:	Single-spin asymmetry of J/psi production in p+p, p+Al and p+Au collisions with transversely polarized proton beams at root{s_NN} = 200 GeV / PHENIX Collaboration
Dátum:	2018
ISSN:	2470-0010 2470-0029
Megjegyzések:	We report the transverse single-spin asymmetries of J/psi production at forward and backward rapidity, 1.2 < vertical bar y vertical bar < 2.2, as a function of J/psi transverse momentum (p(T)) and Feynman-x (x(F)). The data analyzed were recorded by the PHENIX experiment at the Relativistic Heavy Ion Collider in 2015 from p + p, p thorn Al, and p thorn Au collisions with transversely polarized proton beams at root s(NN) p = 200 GeV. At this collision energy, single-spin asymmetries for heavy-flavor particle production of p thorn p collisions provide access to the spin-dependent gluon distribution and higher-twist correlation functions inside the nucleon, such as the gluon Qiu-Sterman and trigluon correlation functions. Proton thorn nucleus collisions offer an excellent opportunity to study nuclear effects on the correlation functions. The data indicate a positive asymmetry at the two-standard-deviation level in the p thorn p data for 2 GeV= c < pT < 10 GeV= c at backward rapidity and negative asymmetries at the two-standard-deviation level in the p thorn Au data for p(T) < 2 GeV= c at both forward and backward rapidity, while in p thorn Al collisions the asymmetries are consistent with zero within the range of experimental uncertainties.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Physical Review D. - 98 : 1 (2018), p. 1-11.
További szerzők:	Lovász K. (fizikus) Majoros Tamás Sun, Z. (fizikus) Tarnai G. Ujvári Balázs (1977-) (fizikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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