Proton Mass Decomposition from the QCD Energy Momentum Tensor
文献类型：期刊论文
| 作者 | Liu CF(刘朝峰) ; Yang, Yi-Bo; Liang, Jian; Bi, Yu-Jiang; Chen, Ying; Draper, Terrence; Liu, Keh-Fei; Liu, Zhaofeng; Yang, Yi-Bo, Liang, Jian, Bi, Yu-Jiang, Chen, Ying, Draper, Terrence, Liu, Keh-Fei; Liu, Zhaofeng
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| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2018 |
| 卷号 | 121期号:21页码:212001 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/PhysRevLett.121.212001 |
| 文献子类 | Article |
| 英文摘要 | We report results on the proton mass decomposition and also on related quark and glue momentum fractions. The results are based on overlap valence fermions on four ensembles of N-f = 2 + 1 domain wall fermion configurations with three lattice spacings and three volumes, and several pion masses including the physical pion mass. With fully nonperturbative renormalization (and universal normalization on both quark and gluon), we find that the quark energy and glue field energy contribute 32(4)(4)% and 36(5)(4)% respectively in the (MS) over bar (modified minimal substraction) scheme at is mu = 2 GeV. A quarter of the trace anomaly gives a 23(1)(1)% contribution to the proton mass based on the sum rule, given 9(2)(1)% contribution from the u, d, and s quark scalar condensates. The u, d, s, and glue momentum fractions in the (MS) over bar scheme are in good agreement with global analyses at it mu = 2 GeV. |
| 电子版国际标准刊号 | 1079-7114 |
| WOS关键词 | LATTICE ; NUCLEON |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000450552800003 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286936]  |
| 专题 | 高能物理研究所_计算中心 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Liu CF,Yang, Yi-Bo,Liang, Jian,et al. Proton Mass Decomposition from the QCD Energy Momentum Tensor[J]. PHYSICAL REVIEW LETTERS,2018,121(21):212001. |
| APA | 刘朝峰.,Yang, Yi-Bo.,Liang, Jian.,Bi, Yu-Jiang.,Chen, Ying.,...&陈莹.(2018).Proton Mass Decomposition from the QCD Energy Momentum Tensor.PHYSICAL REVIEW LETTERS,121(21),212001. |
| MLA | 刘朝峰,et al."Proton Mass Decomposition from the QCD Energy Momentum Tensor".PHYSICAL REVIEW LETTERS 121.21(2018):212001. |
入库方式： OAI收割
来源：高能物理研究所
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