I=2 Pion Scattering Length and Phase Shift with Wilson Fermions
PACS Collaboration, S. Aoki, R. Burkhalter, M. Fukugita, S. Hashimoto, N. Ishizuka, Y. Iwasaki, K. Kanaya, T. Kaneko, Y. Kuramashi, V. Lesk, M. Okawa, Y. Taniguchi, A. Ukawa, T. Yoshié
Abstract
We present preliminary results of scattering length and phase shift for I=2 S-wave ππ system with the Wilson fermions in the quenched approximation. The finite size method presented by Lüscher is employed, and calculations are carried out at β=5.9 on a 243× 60 and 323× 60 lattice.
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