文章基本信息

标题：Disconnected contributions to D-meson semi-leptonic decay form factors
本地全文：下载
作者：G. Bali ; S. Collins ; R. Horsley 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 calculate the disconnected contribution to the form factor for the semileptonic decay of a D-meson into a final state, containing a flavor singlet eta meson. We use QCDSF nf = 2+1 configurations at the flavor symmetric point mu = md = ms and the partially quenched approximation for the relativistic charm quark. Several acceleration and noise reduction techniques for the stochastic estimation of the disconnected loop are tested.