全QCD中改进交错夸克的强子电磁劈裂
高能物理 - 格点
2010-01-21 v1
摘要
我们展示了关于带电和中性介子电磁劈裂以及Dashen定理破坏的初步研究。强子质量是在格距\approx 0.15fm的MILC N_f=2+1 QCD系综上，结合淬火非紧致U(1)位形计算的。O(a^2)蝌蚪改进的交错夸克（asqtad）作用量同时用于海夸克和六个不同的价夸克质量。手征外推是使用结合了电磁修正的部分淬火手征微扰理论进行的。
引用
@article{arxiv.0812.4486,
title = {Electromagnetic splittings of hadrons from improved staggered quarks in full QCD},
author = {S. Basak and A. Bazavov and C. Bernard and C. DeTar and W. Freeman and Steven Gottlieb and U. M. Heller and J. E. Hetrick and J. Laiho and L. Levkova and J. Osborn and R. Sugar and D. Toussaint},
journal= {arXiv preprint arXiv:0812.4486},
year = {2010}
}
备注
7 pages, 7 figures, presented at the XXVI International Symposium on Lattice Field Theory, July 14-19, 2008, Williamsburg, Virginia, USA