Speaker
Raza Sufian
(University of Kentucky, United States)
Description
We present a lattice QCD calculation of the strange quark contribution to the proton's magnetic moment and the charge radius at the physical pion mass. The finite lattice spacing and finite volume corrections are included in a global fitting on three lattices with different lattice spacings, different volumes, and three sea quark masses. We obtain the strange magnetic moment $G^s_M(0) = - 0.073(17)\, \mu_N$ and strange charge radius $\langle r^2_s\rangle_E = -0.0047(22) \,\text{fm}^2$. Additionally, we present our results of the disconnected $u$, $d$-quarks contribution to the proton's electromagnetic form factors.
Primary author
Raza Sufian
(University of Kentucky, United States)
Co-authors
Dr
Jian Liang
(University of Kentucky)
Prof.
Keh-Fei Liu
(University of Kentucky)
Prof.
Terrence Draper
(University of Kentucky)
Dr
YIBO Yang
(university of Kentucky)
