文章基本信息

标题：Kaon-kaon scattering at maximal isospin from $N_f=2+1+1$ twisted mass lattice QCD
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作者：C.Helmes ; C.Jost ; B.Knippschild 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2016
卷号：256
DOI：10.22323/1.256.0135
语种：English
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present results for the interaction of two kaons at maximal isospin. The calculation is based on 2+1+1 flavour gauge configurations generated by the ETM Collaboration (ETMC) featuring pion masses ranging from about 230 MeV to 450 MeV at three values of the lattice spacing. The elastic scattering length a^{I=1}_0 is calculated at several values of the bare strange quark and light quark masses. We find MKa0 = -0.397(11)(+0 -8) as the result of a chiral and continuum extrapolation to the physical point. This number is compared to other lattice results.