Speaker
Ryutaro Tsuji
(KEK)
Description
We study disconnected diagram contributions to the nucleon structure with one of the PACS10 ensembles.
Our gauge configurations are generated by the PACS Collaboration with the stout-smeared $O(a)$ improved Wilson fermions and Iwasaki gauge action at $\beta=1.82$ corresponding to the lattice spacing of 0.9 fm.
In this talk, we present preliminary results for the disconnected contributions for the nucleon form factors with $q^2\lesssim 0.05\ [\mathrm{GeV}^2]$. Based on the computation, we will also investigate the contribution to a proton radius.
Author
Ryutaro Tsuji
(KEK)
Co-authors
Dr
Eigo Shintani
(University of Tokyo)
Hiromasa Watanabe
(Keio University)
Prof.
Ken-Ichi Ishikawa
(Hiroshima University)
Kohei Sato
(Center for Computational Sciences, University of Tsukuba)
Prof.
Shoichi Sasaki
(Tohoku University)
Prof.
Takeshi Yamazaki
(University of Tsukuba)
Yasumichi Aoki
Prof.
Yoshinobu Kuramashi
(University of Tsukuba)