P-wave charmed-strange meson 孙志峰 兰州大学 物理科学与技术学院

OUTLINE Introduction The QPC Model Numerical result Summary

1) INTRODUCTION BaBar data of the newly discovered charmed-strange meson

2) THE QPC MODEL The QPC model was proposed by Micu to calculate OZI allowed strong decay of a meson. Latter, it was developed and is successful in calculating the strong decay of hadron. In the model, the meson decay occurs through a quark-antiquark pair production from the vacuum.

3) NUMERICAL RESULT Xian-hui Zhong and Qiang Zhao Phys.Rev.D81(2010) The result from constituent quark model agrees with ours

4) Summary

Thank you !

The partial wave amplitudes (We have considered the mixing of 1P1 and 3P1 states when calculating partial wave amplitudes of two 1+ states)

Result of spatial integral