文章基本信息

标题：Nucleon spin and quark content at the physical point
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作者：C.Alexandrou ; M.Constantinou ; K.Hadjiyiannakou 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2016
卷号：256
DOI：10.22323/1.256.0153
语种：English
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present results on the spin and quark content of the nucleon using Nf = 2 twisted mass cloverimproved fermion simulations with a pion mass close to its physical value. We use recently developed methods to obtain accurate results for both connected and disconnected contributions. We provide results for the axial charge, quark and gluon momentum fraction as well as the light, strange and charm $\sigma$-terms.