Measurement of inclusive J/psi polarization in p plus p collisions at root s=200 GeV by the STAR experiment
文献类型：期刊论文
| 作者 | Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2020 |
| 卷号 | 102期号:9页码:- |
| 关键词 | PRODUCTION CROSS-SECTION ANGULAR-DISTRIBUTION HADROPRODUCTION MULTIPLICITY |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.102.092009 |
| 文献子类 | 期刊论文 |
| 英文摘要 | We report on new measurements of inclusive J/psi polarization at midrapidity in p + p collisions at root s = 200 GeV by the STAR experiment at the Relativistic Heavy Ion Collider. The polarization parameters, lambda(theta), lambda(phi), and lambda(theta phi), are measured as a function of transverse momentum (p(T)) in both the helicity and Collins-Soper (CS) reference frames within p(T) < 10 GeV/c. Except for lambda(0) in the CS frame at the highest measured p(T), all three polarization parameters are consistent with 0 in both reference frames without any strong p(T) dependence. Several model calculations are compared with data, and the one using the Color Glass Condensate effective field theory coupled with nonrelativistic QCD gives the best overall description of the experimental results, even though other models cannot be ruled out due to experimental uncertainties. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32994]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Indian Inst Technol, Patna 801106, Bihar, India 2.Indiana Univ, Bloomington, IN 47408 USA 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 4.Univ Jammu, Jammu 180001, India 5.Joint Inst Nucl Res, Dubna 141980, Russia 6.Kent State Univ, Kent, OH 44242 USA 7.Univ Kentucky, Lexington, KY 40506 USA (3 8.Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA 9.Lehigh Univ, Bethlehem, PA 18015 USA 10.Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany |
| 推荐引用方式 GB/T 7714 | Adam, J,Adamczyk, L,Adams, JR,et al. Measurement of inclusive J/psi polarization in p plus p collisions at root s=200 GeV by the STAR experiment[J]. PHYSICAL REVIEW D,2020,102(9):-. |
| APA | Adam, J.,Adamczyk, L.,Adams, JR.,Adkins, JK.,Agakishiev, G.,...&Zyzak, M.(2020).Measurement of inclusive J/psi polarization in p plus p collisions at root s=200 GeV by the STAR experiment.PHYSICAL REVIEW D,102(9),-. |
| MLA | Adam, J,et al."Measurement of inclusive J/psi polarization in p plus p collisions at root s=200 GeV by the STAR experiment".PHYSICAL REVIEW D 102.9(2020):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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