Quenched Charmed Meson Spectra using Tadpole Improved Quark Action on Anisotropic Lattices

Details Quenched Charmed Meson Spectra using Tadpole Improved Quark Action on Anisotropic Lattices Quenched Charmed Meson Spectra using Tadpole Improved Quark Action on Anisotropic Lattices

2005-05-11

arxiv.org/abs/hep-lat/0505006v1

Chin.Phys.Lett. 22 (2005) 2198-2200

Physics

High Energy Physics

High Energy Physics - Lattice

8 pages, 2 figures, latex file

Scientific paper

10.1088/0256-307X/22/9/016

Charmed meson charmonium spectra are studied with improved quark actions on anisotropic lattices. We measured the pseudo-scalar and vector meson dispersion relations for 4 lowest lattice momentum modes with quark mass values ranging from the strange quark to charm quark with 3 different values of gauge coupling $\beta$ and 4 different values of bare speed of light $\nu$. With the bare speed of light parameter $\nu$ tuned in a mass-dependent way, we study the mass spectra of $D$, $D_s$, $\eta_c$, $D^{\ast}$, $D_s^{\ast}$ and $J/\psi$ mesons. The results extrapolated to the continuum limit are compared with the experiment and qualitative agreement is found.

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