Heavy quark symmetry in strong decays of P-wave heavy-light mesons
Heavy quark symmetry in strong decays of P-wave heavy-light mesons
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发表时间：
2012-10
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通讯作者：
Bing Chen;Ling Yuan;Ai-lin Zhang
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作者：
Bing Chen;Ling Yuan;Ai-lin Zhang
用EHQ方法研究了P波重轻介子强衰变中的重夸克对称性及其破缺。理论与实验的一致性表明，在这些介子的两体强衰变中，重夸克对称性的破缺并不大。本文研究了EHQ方法与$^3P_0$模型之间的关系，并在$^3P_0$模型下解析地导出了EHQ方法中P波重轻介子的唯象跃迁强度$\mathcal {F}^{j_q，j '_q}_{j_h，l}（0）$。
Heavy quark symmetry and its breaking in strong decays of P-wave heavy-light mesons are examined within the EHQ's method. The consistence of theory with experiments indicates that the breaking of heavy quark symmetry in the two-body strong decays of these mesons is not large. The relation between the EHQ's method and the $^3P_0$ model is investigated, and the phenomenological transition strengths $\mathcal {F}^{j_q,j'_q}_{j_h,l}(0)$ of the P-wave heavy-light mesons within the EHQ method are analytically derived within the $^3P_0$ model.