Single-spin asymmetry of J/psi production in p plus p, p plus Al, and p plus Au collisions with transversely polarized proton beams at root s(NN)=200 GeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10377377" target="_blank" >RIV/00216208:11320/18:10377377 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevD.98.012006" target="_blank" >https://doi.org/10.1103/PhysRevD.98.012006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.98.012006" target="_blank" >10.1103/PhysRevD.98.012006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Single-spin asymmetry of J/psi production in p plus p, p plus Al, and p plus Au collisions with transversely polarized proton beams at root s(NN)=200 GeV

Popis výsledku v původním jazyce

We report the transverse single-spin asymmetries of J/psi production at forward and backward rapidity, 1.2 &lt; vertical bar y vertical bar &lt; 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 &lt; pT &lt; 10 GeV= c at backward rapidity and negative asymmetries at the two-standard-deviation level in the p thorn Au data for p(T) &lt; 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.

Název v anglickém jazyce

Single-spin asymmetry of J/psi production in p plus p, p plus Al, and p plus Au collisions with transversely polarized proton beams at root s(NN)=200 GeV

Popis výsledku anglicky

We report the transverse single-spin asymmetries of J/psi production at forward and backward rapidity, 1.2 &lt; vertical bar y vertical bar &lt; 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 &lt; pT &lt; 10 GeV= c at backward rapidity and negative asymmetries at the two-standard-deviation level in the p thorn Au data for p(T) &lt; 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review D

ISSN

2470-0010

e-ISSN

—

Svazek periodika

98

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

000440140300003

EID výsledku v databázi Scopus

2-s2.0-85051023565