I=2 Pion Scattering Length with Wilson Fermions

JLQCD Collaboration; S. Aoki; M. Fukugita; S. Hashimoto; K-I. Ishikawa; N. Ishizuka; Y. Iwasaki; K. Kanaya; T. Kaneda; S. Kaya; Y. Kuramashi; M. Okawa; T. Onogi; S. Tominaga; N. Tsutsui; A. Ukawa; N. Yamada; T. YoshiÃ©

doi:10.1016/S0920-5632(00)91635-9

paper

I=2 Pion Scattering Length with Wilson Fermions

arXiv:hep-lat/9911025 · doi:10.1016/S0920-5632(00)91635-9

Abstract

We present results for I=2 pion scattering length with the Wilson fermions in the quenched approximation. The finite size method presented by LÃ¼scher is employed, and calculations are carried out at $I^^{2} = 5.9$ , 6.1, and 6.3. In the continuum limit, we obtain a result in reasonable agreement with the experimental value.

LATTICE99(matrixelement), 3 pages, 4 eps figures