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arXiv 1210.6151hep-ph
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P波重轻介子强衰变中的重夸克对称性

Heavy quark symmetry in strong decays of P-wave heavy-light mesons

Bing Chen, Ling Yuan, Ailin Zhang

摘要:

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。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$\mathcal {F}^{j_q,j'_q}_{j_h,l}(0)$.

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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