overlap与twisted mass费米子在手征极限方向的比较
高能物理 - 格点
2008-11-26 v1
摘要
我们比较了具有手征不变性的overlap费米子和Wilson twisted mass费米子在趋近手征极限时的行为。我们的淬火模拟表明,使用这两种格点费米子公式,在实际模拟中都可以达到O(250 MeV)的π介子质量。我们的比较是在固定格点间距a=0.123 fm下进行的。我们测量了若干量,如强子质量和赝标量衰变常数。
引用
@article{arxiv.hep-lat/0409109,
title = {Comparison between overlap and twisted mass fermions towards the chiral limit},
author = {W. Bietenholz and S. Capitani and T. Chiarappa and M. Hasenbusch and K. Jansen and K. -I. Nagai and M. Papinutto and L. Scorzato and S. Shcheredin and A. Shindler and C. Urbach and U. Wenger and I. Wetzorke},
journal= {arXiv preprint arXiv:hep-lat/0409109},
year = {2008}
}
备注
Lattice2004(chiral)