文章基本信息

标题：The first moment of the Kaon distribution amplitude from Nf=2+1 Domain Wall Fermions
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作者：A. Juttner
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2006
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present a lattice computation of the first moment of the kaon’s leading-twist distribution amplitude. We use ensembles with 2+1 dynamical flavours of domain wall fermions and the Iwasaki gauge action from the RBC and UKQCD joint dataset. We observe the expected chiral behaviour and obtain hx i(2GeV) ≡ 3/5a1 K (2GeV) = 0.032(3), which agrees very well with other results obtained using QCD sum-rules and the recent lattice result from the UKQCD/QCDSF collaboration.