Speaker
Liuming Liu
(Institute of Modern Physics, Chinese Academy of Sciences)
Description
In this talk I present the result on nucleon isovector scalar charge using overlap fermions on 2+1 flavor domain-wall configurations generated by RBC/UKQCD collaboration. The ensembles span four lattice spacings 0.06, 0.08, 0.11 and 0.14 fm and five pion masses in the range from the physical value to 370 MeV. The scalar charge is extracted from the ratio of 3pt and 2pt functions by two-state fit. Extrapolation to the physical pion mass, continuum limit and infinite volume is performed by simultaneously fit in the three variables. Our result is in agreement with previous lattice determinations.
Author
Liuming Liu
(Institute of Modern Physics, Chinese Academy of Sciences)
Co-authors
Dr
Jian Liang
(University of Kentucky)
Prof.
Keh-Fei Liu
(University of Kentucky)
yibo yang
(University of Kentucky, US)
Prof.
Terrence Draper
(University of Kentucky)
Ms
Ting Chen
(Peking University)
