Speaker
Mingyang Sun
(University of Kentucky)
Description
We present our calculations of the Roper state obtained from a combination of spatially large interpolation fields. The calculation is carried out with overlap valence fermion on $2 + 1$-flavor domain-wall fermion configurations on the $24^3\times 64$ lattice with $a^{-1} = 1.73\,$GeV. Our result is consistent with that from the Sequential Bayesian method (SBM) on the same lattice, and with the experimental value at $1440$ MeV. We utilize the same method on the anisotropic Clover lattice, and compare with the overlap results. In the end we give an explanation on the nature of the difference.
Primary author
Mingyang Sun
(University of Kentucky)
Co-authors
Prof.
Keh-Fei Liu
(University of Kentucky)
Prof.
Ming Gong
(Institute of High Energy Physics)
Raza Sufian
(University of Kentucky)
Prof.
Ying Chen
(Institute of High Energy Physics)
Dr
yibo Yang
(University of kentucky)
