Proton Mass Decomposition from the QCD Energy Momentum Tensor

doi:10.1103/PhysRevLett.121.212001

	Proton Mass Decomposition from the QCD Energy Momentum Tensor
	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
刊名	PHYSICAL REVIEW LETTERS
	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
内容类型	期刊论文
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.