具有M\ \ obius畴壁夸克的Nf=3 QCD中的D介子半光子形状因子

T. Kaneko, B. Colquhoun, H. Fukaya, S. Hashimoto
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引用次数: 13

摘要

我们给出了在Nf = 2+1晶格QCD中D \to pi和D \to K半光子形式因子的计算。在介子质量低至230 MeV的情况下,我们模拟了3个晶格截止点,分别为1/a / sim 2.5、3.6和4.5 GeV。轻夸克和粲夸克都采用了M ' obius畴壁作用。我们给出了矢量和标量形式因子的结果,并讨论了它们与晶格间距、轻夸克质量和动量转移的关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
D meson semileptonic form factors in Nf=3 QCD with M\"obius domain-wall quarks
We present our calculation of D \to pi and D \to K semileptonic form factors in Nf = 2+1 lattice QCD. We simulate three lattice cutoffs 1/a \sim 2.5, 3.6 and 4.5 GeV with pion masses as low as 230 MeV. The M\"obius domain-wall action is employed for both light and charm quarks. We present our results for the vector and scalar form factors and discuss their dependence on the lattice spacing, light quark masses and momentum transfer.
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