I=2 pion scattering length with the parametrized fixed point action

Abstract

We report on the pion-pion scattering length in the I=2 channel using the parametrized fixed point action. Pion masses of 320 MeV were reached in this quenched calculation of the scattering length.

Comments: 3 pages, 5 figures, Lattice2003 (Spectrum)