文章基本信息

标题：Quark distributions in the pion
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作者：D. Broemmel ; M. Diehl ; M. Goeckeler 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2007
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We compute the lowest three non-trivial moments of the quark distribution functions in the pion. We also present results of the generalisation to moments of vector and tensor GPDs that are related to the distribution of quarks in the transverse plane. We find a distortion of the distribution of polarised quarks that is similar to that observed in the nucleon. The simulation is done using two flavours of dynamical fermions with pion masses down to 340MeV. Important features of our investigation are the use of O(a) improvedWilson fermions and non-perturbative renormalisation.