32nd International Symposium on Lattice Field Theory (Lattice 2014)

Charm in Lattice QCD with Domain-Wall Fermion

23 Jun 2014, 16:30

20m

428 Pupin

Talk Hadron Spectroscopy and Interactions Hadron spectroscopy and interaction

Speaker

Prof. Ting-Wai Chiu (National Taiwan University)

Description

We study the charm physics in two-flavors lattice QCD with optimal domain-wall fermion. The gauge ensembles are generated on the ${24}^3\times 48$ lattice with the extent in the fifth dimension $N_s=16$, and the plaquette gauge action at $\beta =6.10$, for three sea-quark masses corresponding to the pion masses in the range 265-465 MeV. We determine the lattice spacing by the Wilson flow, and the strange and the charm quark masses by the masses of the vector mesons $\varphi (1020)$ and $J/\psi (3097)$ respectively. We compute the point-to-point quark propagators and measure the time-correlation functions of all 2-quark meson interpolators, and determine the lowest-lying mass spectra of charmed mesons with quark contents c-cbar, c-sbar and c-dbar. Moreover, we determine the pseudoscalar decay constants $f_K$, $f_D$ and $f_{D_s}$, which are in good agreement with the experimental values.

Presentation materials

Slides

twchiu_140623.pdf