Press Authors, OICC. “Proof of Factorization of χcJdocumentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$chi _{ ext{cJ}}$$end{document} Production in Non-Equilibrium QCD at RHIC and LHC in Color Singlet Mechanism”. Journal of Theoretical and Applied Physics, vol. 11, no. 4, Nov. 2023, https://doi.org/10.1007/s40094-017-0267-7.