I=2 $\pi$-$\pi$ scattering length with dynamical overlap fermion

Takuya Yagi, Shoji Hashimoto, Osamu Morimatsu +1

We report on a lattice QCD calculation of the I=2 $\pi \pi$ scattering length using the overlap fermion formulation for both sea and valence quarks. We investigate the consistency of th…