Single-spin asymmetry of J/ψ production in p+p, p+Al, and p+Au collisions with transversely polarized proton beams at √s.sub.NN./sub.=200 GeV

0519338 - FZÚ 2020 RIV US eng J - Článek v odborném periodiku
Aidala, C. - Akiba, Y. - Alfred, M. - Vrba, Václav … celkem 293 autorů
Single-spin asymmetry of J/ψ production in p+p, p+Al, and p+Au collisions with transversely polarized proton beams at √s_NN=200 GeV.
Physical Review D. Roč. 98, č. 1 (2018), s. 1-11, č. článku 012006. ISSN 2470-0010. E-ISSN 2470-0029
Institucionální podpora: RVO:68378271
Klíčová slova: chromodynamics: (factorization) * heavy quark: production * Brookhaven RHIC Coll * PHENIX * 200 GeV
Obor OECD: Particles and field physics
Impakt faktor: 4.368, rok: 2018
Způsob publikování: Open access

We report the transverse single-spin asymmetries of J/ψ production at forward and backward rapidity, 1.2<|y|<2.2, as a function of J/ψ transverse momentum (pT) and Feynman-x (xF). The data analyzed were recorded by the PHENIX experiment at the Relativistic Heavy Ion Collider in 2015 from p+p, p+Al, and p+Au collisions with transversely polarized proton beams at sNN=200  GeV. At this collision energy, single-spin asymmetries for heavy-flavor particle production of p+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+nucleus collisions offer an excellent opportunity to study nuclear effects on the correlation functions.

Trvalý link: http://hdl.handle.net/11104/0304335