| Quenched Charmed Meson Spectra Using Tadpole Improved Quark Action on Anisotropic Lattices |
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| 作者姓名： | 刘柳明 苏石泉 李欣 刘川 |
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| 作者单位： | School of Physics, Peking University, Beijing 100871 |
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| 基金项目： | Supported by Key Project of the National Natural Science Foundation of China under Grant Nos 10421003 and 10235040, and the Trans-Century Fund from the Ministry of Education of China. |
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| 摘 要： | Charmed meson charmonium spectra are studied with improved quark actions on anisotropic lattices. We measured the pseudo-scalar and vector meson dispersion relations for four lowest lattice momentum modes with quark mass values ranging from the strange quark to charm quark with three different values of gauge coupling β and four different values of bare speed of light v. With the bare speed of light parameter v tuned in a mass-dependent way, we study the mass spectra of D, Ds, ηc, D^＊, D^＊s and J/ψ mesons. The results extrapolated to the continuum limit are compared with the experiment, and a qualitative agreement is found.
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| 关 键 词： | 介子 光谱 夸克 高能物理 |
| 收稿时间： | 2005-05-14 |
| 修稿时间： | 2005-05-14 |
Quenched Charmed Meson Spectra Using Tadpole Improved Quark Action on Anisotropic Lattices |
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| Liu LiuMing;Su DanQuan;Li Xin;Liu Chuan.Quenched Charmed Meson Spectra Using Tadpole Improved Quark Action on Anisotropic Lattices[J].Chinese Physics Letters,2005,22(9):2198-2200. |
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| Authors: | Liu LiuMing;Su DanQuan;Li Xin;Liu Chuan |
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