Quenched QCD with domain-wall fermions on coarse lattices
PACS Collaboration, A. Ali Khan, S. Aoki, Y. Aoki, R. Burkhalter, S. Ejiri, M. Fukugita, S. Hashimoto, N. Ishizuka, Y. Iwasaki, T. Izubuchi, K. Kanaya, T. Kaneko, Y. Kuramashi, T. Manke, K. Nagai, M. Okawa, H. P. Shanahan, Y. Taniguchi, A. Ukawa, T. Yoshie
Abstract
We investigate the existence of chiral zero modes at a-1 1 GeV in quenched domain-wall QCD. Simulations are carried out for the plaquette and an RG-improved gauge actions on a 123x24xNs lattice with Ns=10-50. We find that the pion mass in the chiral limit remains non-vanishing as Ns∞ for both gauge actions. Possible origins of this non-vanishing pion mass are discussed.
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