Remaining parts of the long-standing J/psi polarization puzzle

doi:10.1103/PhysRevD.99.014044

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	Remaining parts of the long-standing J/psi polarization puzzle
	Feng, Y ; Gong, B ; Chang, CH ; Wang, JX
刊名	PHYSICAL REVIEW D
	2019
卷号	99 期号:1 页码:14044
ISSN号	2470-0010
DOI	10.1103/PhysRevD.99.014044
英文摘要	Based on the nonrelativistic quantum chromodynamics factorization formalism, the polarization parameters lambda(theta phi) and lambda(phi) of prompt J/psi hadroproduction for CMS and LHCb are analyzed in the helicity frame and calculated at QCD next-to-leading order for the first time. For prompt J/psi production, we take into account the feed-down contributions from chi(cJ) and psi(2S) decays. The theoretical predictions for the polarization parameters lambda(theta phi) and of J/psi are presented. Using the theoretical results, we perform a simultaneous fit to the experimental measurements of the yield and polarization of J/psi hadroproduction, and find that the results describe the experimental measurements at the LHC quite well.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23500]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100190, Peoples R China 3.Army Med Univ, Coll Basic Med Sci, Dept Phys, Chongqing 400038, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Feng, Y,Gong, B,Chang, CH,et al. Remaining parts of the long-standing J/psi polarization puzzle[J]. PHYSICAL REVIEW D,2019,99(1):14044.
APA	Feng, Y,Gong, B,Chang, CH,&Wang, JX.(2019).Remaining parts of the long-standing J/psi polarization puzzle.PHYSICAL REVIEW D,99(1),14044.
MLA	Feng, Y,et al."Remaining parts of the long-standing J/psi polarization puzzle".PHYSICAL REVIEW D 99.1(2019):14044.