| Ds（0^±） Meson Spectroscopy in Gaussian Sum Rules |
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| 引用本文： | 闻水国,刘觉平.Ds（0^±） Meson Spectroscopy in Gaussian Sum Rules[J].中国物理快报,2009,26(2):65-68. |
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| 作者姓名： | 闻水国 刘觉平 |
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| 作者单位： | College of Physics and Technology, Wuhan University, Wuhan 430072 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10775105, BEPC National Laboratory Project R＆D and BES Collaboration Research Foundation. |
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| 摘 要： | Masses of the Ds（0^±） mesons are investigated from a view-point of ordinary light-heavy system in the framework of the Gaussian sum rules, which are worked out by means of the Laplacian transformation to the usual Borel sum rules. Using the standard input of QCD non-perturbative parameters, the corresponding mass spectra and couplings of the currents to the Ds（0^±） mesons are obtained. Our results are mDs（0-） = 1.968±0.016±0.003 GeV and mDs（0＋） = 2.320 ±0.014 ± 0.003 GeV, which are in good accordance with the experimental data, 1.969 GeV and 2.317 GeV.
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| 关 键 词： | 求和规则 介子 高斯 拉普拉斯变换 使用标准 实验数据 MDS 伏特 |
| 收稿时间： | 2008-5-5 |
Ds（0^±） Meson Spectroscopy in Gaussian Sum Rules |
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| WEN Shui-Guo,LIU Jue-Ping.Ds（0^±） Meson Spectroscopy in Gaussian Sum Rules[J].Chinese Physics Letters,2009,26(2):65-68. |
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| Authors: | WEN Shui-Guo LIU Jue-Ping |
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| Affiliation: | College of Physics and Technology, Wuhan University, Wuhan 430072 |
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| Abstract: | Masses of the Ds(0±)mesons are investigated from a view-point of ordinary light-heavy system in the framework of the Gaussian sum rules, which are worked out by means of the Laplacian transformation to the usual Borel sum rules. Using the standard input of QCD non-perturbative parameters, the corresponding mass spectra and couplings of the currents to the Ds(0±) mesons are obtained. Our results are mDs(0-)=1.968±0.016±0.003GeV and mDs(0+)=2.320±0.014±0.003GeV, which are in good accordance with the experimental data, 1.969GeV and 2.317GeV. |
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| Keywords: | 12 40 Yx 11 55 Hx 14 40 Lb 13 25 Ft |
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