We perform the first study of treating b, c, and s quarks as Dirac fermions in lattice QCD with exact chiral symmetry. On a 32^3 60 lattice with 1/a ~ 7.68 GeV, we compute point-to-point quark propagators, and measure the time-correlation functions for mesons with quark contents b_bbar, c_bbar, s_bbar, and c_cbar. The lowest-lying meson mass spectra, the pseudoscalar decay constants, and the b and c quark masses are determined.
@article{arxiv.0711.2131,
title = {Dirac b quark on the lattice},
author = {TWQCD Collaboration and Ting-Wai Chiu and Tung-Han Hsieh and Chao-Hsi Huang and Kenji Ogawa},
journal= {arXiv preprint arXiv:0711.2131},
year = {2011}
}
Comments
7 pages, 1 figure, Proceedings of Lattice 2007, Regensburg, Germany, July 30 - August 4, 2007