DOMAIN WALL FERMIONS AND CHIRAL SYMMETRY

摘要

Dynamical DWF quark simulation. 1. Two new algorithms ( a factor of three to four speed up) 2. Lattice spacing a~(-1) ～ 1.7 GeV. 3. Sea quark masses m_f(dyn)/m_s ～ 0.5, 0.75,1.0. 4. m_(res) ～ a few MeV at L_s = 12. 5. improved gluon action helps chiral symmetry but not much as quenched case.