电磁效应对轻赝标量介子的影响及$m_u/m_d$的确定
高能物理 - 格点
2016-06-06 v1 高能物理 - 唯象学
摘要
MILC合作组已完成使用asqtad改进交错夸克计算电磁效应对轻介子影响的生产运行。在这些计算中，我们采用非紧致形式下的淬火光子。我们研究了从约0.12 fm到约0.045 fm的四种晶格间距。为研究有限体积效应，我们在fm处使用了六种空间晶格尺寸、16、20、28、40和48。我们更新了Dashen定理修正项()和夸克质量比的初步结果。
引用
@article{arxiv.1606.01228,
title = {Electromagnetic effects on the light pseudoscalar mesons and determination of $m_u/m_d$},
author = {MILC Collaboration and S. Basak and A. Bazavov and C. Bernard and C. DeTar and E. Freeland and J. Foley and Steven Gottlieb and U. M. Heller and J. Komijani and J. Laiho and L. Levkova and J. Osborn and R. L. Sugar and A. Torok and D. Toussaint and R. S. Van de Water and R. Zhou},
journal= {arXiv preprint arXiv:1606.01228},
year = {2016}
}
备注
7 pages, 3 figures, to appear in the Proceedings of Lattice 2015, The 33rd International Symposium on Lattice Field Theory, held 14 -18 July 2015, at Kobe International Conference Center, Kobe, Japan. Will be published by Proceedings of Science, pos.sissa.it, PoS(LATTICE2015)