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arxiv: hep-lat/0110151 · v1 · pith:ZMBJZIUFnew · submitted 2001-10-17 · ✦ hep-lat

I=2 Pion Scattering Length and Phase Shift with Wilson Fermions

CP-PACS Collaboration : S. Aoki , R. Burkhalter , M. Fukugita , S. Hashimoto , N. Ishizuka , Y. Iwasaki , K. Kanaya , T. Kaneko
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Y. Kuramashi V. Lesk M. Okawa Y. Taniguchi A. Ukawa T. Yoshi\'e
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classification ✦ hep-lat
keywords fermionslengthphasescatteringshifttimeswilsonapproximation
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We present preliminary results of scattering length and phase shift for I=2 S-wave $\pi\pi$ system with the Wilson fermions in the quenched approximation. The finite size method presented by L\"uscher is employed, and calculations are carried out at $\beta=5.9$ on a $24^3\times 60$ and $32^3\times 60$ lattice.

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