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Journal of High Energy Physics

, 2018:136 | Cite as

Double longitudinal-spin asymmetries in J/ψ production at RHIC

  • Yu Feng
  • Hong-Fei ZhangEmail author
Open Access
Regular Article - Theoretical Physics

Abstract

The double longitudinal-spin asymmetry, ALL, of the J/ψ production in polarized proton-proton collisions is presented in this paper at QCD next-to-leading order. It is found that the obtained values of ALL are in general consistent with the PHENIX measurements. Various sets of the long-distance matrix elements (LDMEs) are employed in our calculation to study the possible theoretical uncertainties. It is found that, for pt < 5 GeV, all these LDMEs lead to almost the same results, which are within the tolerance of the experimental data uncertainties.

Keywords

NLO Computations 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2018

Authors and Affiliations

  1. 1.Department of Physics, College of Basic Medical SciencesArmy Medical UniversityChongqingChina
  2. 2.College of Big Data StatisticsGuizhou University of Finance and EconomicsGuiyangChina

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