Speaker
Mr
Junpei Kakazu
(University of Tsukuba)
Description
We present preliminary result of the electromagnetic form factor of the pion
at $m_\pi=0.145$ GeV on the large volume corresponding to $L = 8.1$ fm
using stout-smearing Wilson clover quark action and Iwasaki
gauge action at $a^{-1}=2.333$ GeV. The mean square charge radius
is estimated from the results at small space-like momentum transfer
with the NLO formula in SU(2) chiral perturbation theory.
Our preliminary result of the charge radius is compared with the experiment
and previous lattice calculations.
Primary author
Mr
Junpei Kakazu
(University of Tsukuba)
Co-authors
Dr
Ken-Ichi Ishikawa
(Hiroshima University)
Dr
Naoya Ukita
(University of Tsukuba)
Dr
Naruhito Ishizuka
(University of Tsukuba)
Takeshi Yamazaki
(Univ. of Tsukuba)
Dr
Tomoteru Yoshie
(University of Tsukuba)
Dr
Yoshifumi Nakamura
(RIKEN)
Prof.
Yoshinobu Kuramashi
(University of Tsukuba/RIKEN AICS)
Yusuke Namekawa
(University of Tsukuba)
Dr
Yusuke Taniguchi
(University of Tsukuba)
