文章基本信息

标题：First moments of the nucleon generalized parton distributions from lattice QCD
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作者：A. Sternbeck ; M. Gockeler ; P. Hagler 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 on our lattice calculations of the nucleon’s generalized parton distributions (GPDs), concentrating on their first moments for the case of Nf = 2. Due to recent progress on the numerical side we are able to present results for the generalized form factors at pion masses as low as 260 MeV. We perform a fit to one-loop covariant baryon chiral perturbation theory with encouraging results.