Measurement of Longitudinal Spin Asymmetries for Weak Boson Production in Polarized Proton-Proton Collisions at RHIC
文献类型：期刊论文
| 作者 | Adamczyk, L.1; Adkins, J. K.23; Agakishiev, G.21; Aggarwal, M. M.35; Ahammed, Z.53; Alekseev, I.19; Alford, J.22; Anson, C. D.32; Aparin, A.21; Arkhipkin, D.4 |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2014-08-13 |
| 卷号 | 113 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/PhysRevLett.113.072301 |
| 文献子类 | Article |
| 英文摘要 | We report measurements of single- and double-spin asymmetries for W-+/- and Z/gamma* boson production in longitudinally polarized p + p collisions at root s = 510 GeV by the STAR experiment at RHIC. The asymmetries for W-+/- were measured as a function of the decay lepton pseudorapidity, which provides a theoretically clean probe of the proton's polarized quark distributions at the scale of the W mass. The results are compared to theoretical predictions, constrained by polarized deep inelastic scattering measurements, and show a preference for a sizable, positive up antiquark polarization in the range 0.05 < x < 0.2. |
| WOS关键词 | FLAVOR ASYMMETRY ; NUCLEON SEA ; ELECTROMAGNETIC CALORIMETER ; PARTON DISTRIBUTIONS ; QUARK DISTRIBUTIONS ; SYMMETRY-BREAKING ; GOTTFRIED SUM |
| 资助项目 | National Research Foundation[NRF-2012004024] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000341115700005 |
| 源URL | [http://119.78.100.186/handle/113462/49731]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Adamczyk, L. |
| 作者单位 | 1.AGH Univ Sci & Technol, PL-30059 Krakow, Poland 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Univ Birmingham, Birmingham B15 2TT, W Midlands, England 4.Brookhaven Natl Lab, Upton, NY 11973 USA 5.Univ Calif Berkeley, Berkeley, CA 94720 USA 6.Univ Calif Davis, Davis, CA 95616 USA 7.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 8.Univ Estadual Campinas, BR-13131 Sao Paulo, Brazil 9.Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China 10.Univ Illinois, Chicago, IL 60607 USA |
| 推荐引用方式 GB/T 7714 | Adamczyk, L.,Adkins, J. K.,Agakishiev, G.,et al. Measurement of Longitudinal Spin Asymmetries for Weak Boson Production in Polarized Proton-Proton Collisions at RHIC[J]. PHYSICAL REVIEW LETTERS,2014,113. |
| APA | Adamczyk, L..,Adkins, J. K..,Agakishiev, G..,Aggarwal, M. M..,Ahammed, Z..,...&STAR Collaboration.(2014).Measurement of Longitudinal Spin Asymmetries for Weak Boson Production in Polarized Proton-Proton Collisions at RHIC.PHYSICAL REVIEW LETTERS,113. |
| MLA | Adamczyk, L.,et al."Measurement of Longitudinal Spin Asymmetries for Weak Boson Production in Polarized Proton-Proton Collisions at RHIC".PHYSICAL REVIEW LETTERS 113(2014). |
入库方式： OAI收割
来源：近代物理研究所
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