We present preliminary results on the ρ meson decay width estimated from the scattering phase shift of the I=1 two-pion system. The phase shift is calculated by the finite size formula for non-zero total momentum frame (the moving frame) derived by Rummukainen and Gottlieb, using the Nf=2 improved Wilson fermion action at mπ/mρ=0.41 and L=2.53fm.
@article{arxiv.hep-lat/0610020,
title = {$\rho$ meson decay from the lattice},
author = {PACS collaboration and S. Aoki and M. Fukugita and K. -I. Ishikawa and N. Ishizuka and K. Kanaya and Y. Kuramashi and Y. Namekawa and M. Okawa and K. Sasaki and A. Ukawa and T. Yoshié},
journal= {arXiv preprint arXiv:hep-lat/0610020},
year = {2012}
}
Comments
7 pages, 6 figures, Talk at Lattice 2006(spectroscopy), to be published in PoS(LAT2006)110