(d)over-bar - (u)over-bar Asymmetry in the Proton in Chiral Effective Theory
文献类型：期刊论文
| 作者 | Salamu, Y; Ji, CR; Melnitchouk, W; Wang, P; 王平(理) |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2015 |
| 卷号 | 114页码:122001 |
| 通讯作者 | Salamu Y |
| 英文摘要 | We compute the (d) over bar - (u) over bar asymmetry in the proton in chiral effective theory, including both nucleon and Delta degrees of freedom, within the relativistic and heavy baryon frameworks. In addition to the distribution at x > 0, we compute the corrections to the asymmetry from zero momentum contributions from pion rainbow and bubble diagrams at x = 0, which have not been accounted for in previous analyses. We find that the empirical x dependence of (d) over bar - (u) over bar as well as the integrated asymmetry can be well reproduced in terms of a transverse momentum cutoff parameter. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI ; EI ; CA |
| WOS记录号 | WOS:000351877200004 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228369]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 GB/T 7714 | Salamu, Y,Ji, CR,Melnitchouk, W,et al. (d)over-bar - (u)over-bar Asymmetry in the Proton in Chiral Effective Theory[J]. PHYSICAL REVIEW LETTERS,2015,114:122001. |
| APA | Salamu, Y,Ji, CR,Melnitchouk, W,Wang, P,&王平.(2015).(d)over-bar - (u)over-bar Asymmetry in the Proton in Chiral Effective Theory.PHYSICAL REVIEW LETTERS,114,122001. |
| MLA | Salamu, Y,et al."(d)over-bar - (u)over-bar Asymmetry in the Proton in Chiral Effective Theory".PHYSICAL REVIEW LETTERS 114(2015):122001. |
入库方式： OAI收割
来源：高能物理研究所
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