文章基本信息

标题：Quark contribution to nucleon momentum and spin from calculations with Domain Wall fermions
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作者：S. Syritsyn ; M. Engelhardt ; J. Green 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2011
卷号：2011
期号：Lattice2011
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We report contributions to the nucleon spin and momentum from light quarks calculated using dynamical domain wall fermions with pion masses down to 300 MeV and fine lattice spacing a = 0:084 fm. Albeit without disconnected diagrams, we observe that spin and orbital angular momenta of both u and d quarks are opposite, almost canceling in the case of the d quark, which agrees with previous calculations using a mixed quark action. We also present the full momentum dependence of n = 2 generalized form factors showing little variation with the pion mass.