Measurement of the Parity-Violating Longitudinal Single-Spin Asymmetry for W-+/- Boson Production in Polarized Proton-Proton Collisions at root s=500 GeV
文献类型：期刊论文
| 作者 | Aggarwal, M. M. ; Ahammed, Z. ; Alakhverdyants, A. V. ; Cai, X. Z.（蔡翔舟） ; Ma, G. L.（马国亮） ; Ma, Y. G.（马余刚） ; . ; Wang, J. S. ; Wang, X. L. ; Zhang, J. B. ; Zhang, W. M. ; Zhang, X. P. ; Zhang, Z. P. ; Zhu, Y. H. ; Zoulkarneev, R. ; Zoulkarneeva, Y. |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2011 |
| 卷号 | 106期号:6 |
| ISSN号 | 0031-9007 |
| 英文摘要 | We report the first measurement of the parity-violating single-spin asymmetries for midrapidity decay positrons and electrons from W+ and W- boson production in longitudinally polarized proton-proton collisions at root s = 500 GeV by the STAR experiment at RHIC. The measured asymmetries, A(L)(W+) = -0.27 +/- 0.10(stat.) +/- 0.02(syst.) +/- 0.03(norm.) and A(L)(W-) = 0.14 +/- 0.19(stat.) +/- 0.02(syst.) +/- 0.01(norm.), are consistent with theory predictions, which are large and of opposite sign. These predictions are based on polarized quark and antiquark distribution functions constrained by polarized deep-inelastic scattering measurements. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000287357100008 |
| 公开日期 | 2012-07-04 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/9546]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Aggarwal, M. M.,Ahammed, Z.,Alakhverdyants, A. V.,et al. Measurement of the Parity-Violating Longitudinal Single-Spin Asymmetry for W-+/- Boson Production in Polarized Proton-Proton Collisions at root s=500 GeV[J]. PHYSICAL REVIEW LETTERS,2011,106(6). |
| APA | Aggarwal, M. M..,Ahammed, Z..,Alakhverdyants, A. V..,Cai, X. Z..,Ma, G. L..,...&Zoulkarneeva, Y..(2011).Measurement of the Parity-Violating Longitudinal Single-Spin Asymmetry for W-+/- Boson Production in Polarized Proton-Proton Collisions at root s=500 GeV.PHYSICAL REVIEW LETTERS,106(6). |
| MLA | Aggarwal, M. M.,et al."Measurement of the Parity-Violating Longitudinal Single-Spin Asymmetry for W-+/- Boson Production in Polarized Proton-Proton Collisions at root s=500 GeV".PHYSICAL REVIEW LETTERS 106.6(2011). |
入库方式： OAI收割
来源：上海应用物理研究所
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