Speaker
Naruhito Ishizuka
(University of Tsukuba)
Description
We present our results of the $\rho$ meson decay width
estimated from the scattering phase shift
for $I=1$ two pion system.
Calculations are carried out with
$N_f=2+1$ gauge configurations previously generated
by the PACS-CS Collaboration
with the Iwasaki gauge action and nonperturbatively
$O(a)$-improved Wilson fermion
at $m_\pi/m_\rho=0.46$ on $32\times 64$ ($La=2.9 fm$).
The finite size method presented by Rummukainen and Gottlieb is
employed to evaluated the scattering phase shift from energy eigenvalues.
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Primary author
Naruhito Ishizuka
(University of Tsukuba)
