Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-05-27
Chin. Phys. Lett. 26 (2009) 021201
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 4 figures
Scientific paper
10.1088/0256-307X/26/2/021201
The masses of the $D_s(0^\pm)$ 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 $D_s(0^\pm)$ mesons are obtained. Our results are $m_{D_s(0^-)}=1.968\pm0.016\pm0.003$ GeV and $m_{D_s(0^+)}=2.320\pm0.014\pm0.003$ GeV, which are in accordance well with the experimental data, 1.969 GeV and 2.317 GeV.
Liu Jueping
Wen Shuiguo
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