A new moving frame to extract scattering phases in lattice QCD

Abstract

We present a derivation of the finite-size formulae in a moving frame with total momentum P=(2π/L)(e1+e2). These formulae allow us to calculate the S-wave and P-wave scattering phases at more energies with a fixed lattice size and thus help us to determine the resonance parameters precisely.

7 pages, a talk presented at The XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010, Villasimius, Italy