文章基本信息

标题：First results with two light flavours of maximally twisted mass
本地全文：下载
作者：C. Urbach
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 report on first results of an ongoing effort to simulate lattice QCD with two degenerate flavours of quarks by means of the twisted mass formulation tuned to maximal twist. By utilising recent improvements of the HMC algorithm, pseudo-scalar masses well below 300MeV are simulated on volumes L3 · T with T = 2L and L > 2fm and at values of the lattice spacing a . 0.1fm. We present first evidence that scaling violations in the pseudo-scalar decay constant are small and well compatible with O(a) improvement. Additionally, exploratory results for the case of Nf = 2+1+1 flavours are discussed.