Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at root s=500 GeV
文献类型：期刊论文
| 作者 | Adamczyk, L.1; Adams, J. R.29; Adkins, J. K.19; Agakishiev, G.17; Aggarwal, M. M.31; Ahammed, Z.54; Ajitanand, N. N.42; Alekseev, I.15,26; Anderson, D. M.44; Aoyama, R.48 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2018-02-02 |
| 卷号 | 97页码:032004 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.97.032004 |
| 英文摘要 | We report the first measurements of transverse single-spin asymmetries for inclusive jet and jet + pi(+/-) production at midrapidity from transversely polarized proton-proton collisions at root s = 500 GeV. The data were collected in 2011 with the STAR detector sampled from 23 pb(-1) integrated luminosity with an average beam polarization of 53%. Asymmetries are reported for jets with transverse momenta 6 < p(T) < 55 GeV/c and pseudorapidity vertical bar eta vertical bar < 1. Presented are measurements of the inclusive-jet azimuthal transverse single-spin asymmetry, sensitive to twist-3 initial-state quark-gluon correlators; the Collins asymmetry, sensitive to quark transversity coupled to the polarized Collins fragmentation function; and the first measurement of the "Collins-like" asymmetry, sensitive to linearly polarized gluons. Within the present statistical precision, inclusive-jet and Collins-like asymmetries are small, with the latter allowing the first experimental constraints on gluon linear polarization in a polarized proton. At higher values of jet transverse momenta, we observe the first nonzero Collins asymmetries in polarized-proton collisions, with a statistical significance of greater than 5 sigma. The results span a range of x similar to results from semi-inclusive deep-inelastic scattering but at much higher Q(2). The Collins results enable tests of universality and factorization breaking in the transverse momentum-dependent formulation of perturbative quantum chromodynamics. |
| WOS关键词 | DEEP-INELASTIC SCATTERING ; HIGH CHI-F ; SIVERS ASYMMETRIES ; ANALYZING-POWER ; ELECTROMAGNETIC CALORIMETER ; QUANTUM CHROMODYNAMICS ; PI-0 PRODUCTION ; DRELL-YAN ; STAR ; COLLINS |
| 资助项目 | RHIC Operations Group ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; Office of Nuclear Physics within the U.S. DOE Office of Science ; U.S. National Science Foundation ; Ministry of Education and Science of the Russian Federation ; National Natural Science Foundation of China ; Chinese Academy of Science ; Ministry of Science and Technology of China ; Chinese Ministry of Education ; National Research Foundation of Korea, GA ; MSMT of the Czech Republic ; Department of Atomic Energy of the Government of India ; Department of Science and Technology of the Government of India ; National Science Centre of Poland ; National Research Foundation ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia ; German Bundesministerium fur Bildung, Wissenschaft, Forschung and Technologie (BMBF) ; Helmholtz Association |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000424057200002 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | RHIC Operations Group ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; Office of Nuclear Physics within the U.S. DOE Office of Science ; U.S. National Science Foundation ; Ministry of Education and Science of the Russian Federation ; National Natural Science Foundation of China ; Chinese Academy of Science ; Ministry of Science and Technology of China ; Chinese Ministry of Education ; National Research Foundation of Korea, GA ; MSMT of the Czech Republic ; Department of Atomic Energy of the Government of India ; Department of Science and Technology of the Government of India ; National Science Centre of Poland ; National Research Foundation ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia ; German Bundesministerium fur Bildung, Wissenschaft, Forschung and Technologie (BMBF) ; Helmholtz Association |
| 源URL | [http://119.78.100.186/handle/113462/46252]  |
| 专题 | 中国科学院近代物理研究所 |
| 作者单位 | 1.AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Brookhaven Natl Lab, Upton, NY 11973 USA 4.Univ Calif Berkeley, Berkeley, CA 94720 USA 5.Univ Calif Davis, Davis, CA 95616 USA 6.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 7.Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China 8.Univ Illinois, Chicago, IL 60607 USA 9.Creighton Univ, Omaha, NE 68178 USA 10.Czech Tech Univ, FNSPE, Prague 11519, Czech Republic |
| 推荐引用方式 GB/T 7714 | Adamczyk, L.,Adams, J. R.,Adkins, J. K.,et al. Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at root s=500 GeV[J]. PHYSICAL REVIEW D,2018,97:032004. |
| APA | Adamczyk, L..,Adams, J. R..,Adkins, J. K..,Agakishiev, G..,Aggarwal, M. M..,...&Zyzak, M..(2018).Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at root s=500 GeV.PHYSICAL REVIEW D,97,032004. |
| MLA | Adamczyk, L.,et al."Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at root s=500 GeV".PHYSICAL REVIEW D 97(2018):032004. |
入库方式： OAI收割
来源：近代物理研究所
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