Ds(0±) Meson Spectroscopy in Gaussian Sum Rules
Ds(0±) Meson Spectroscopy in Gaussian Sum Rules
复制标题
高斯和规则中的 Ds(0±) 介子能谱
DOI：
10.1088/0256-307x/26/2/021201
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发表时间：
2009
影响因子：
3.5
通讯作者：
Liu Jue
中科院分区：
文献类型：
--
作者：
Wen Shuiguo;Liu Jue
本文从普通轻重系统的观点出发，在高斯求和规则的框架下研究了Ds（0±）介子的质量。高斯求和规则是通过对通常的Borel求和规则进行Laplacian变换而得到的。在QCD非微扰参数的标准输入下，得到了相应的质量谱和流与Ds（0±）介子的耦合.我们的结果是mDs（0-）= 1.968 ± 0.016 ± 0.003 GeV和mmDs（0+）= 2.320 ± 0.014 ± 0.003 GeV，这与实验数据1.969 GeV和2.317 GeV符合得很好。
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 mmDs(0+) = 2.320 ± 0.014 ± 0.003 GeV, which are in good accordance with the experimental data, 1.969 GeV and 2.317 GeV.