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arXiv 0705.0892hep-ph
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二体B介子衰变中的Ds0 *(2317)和Ds1(2460)介子

Ds0*(2317) and Ds1(2460) mesons in two-body B-meson decays

Amand Faessler, Thomas Gutsche, Sergey Kovalenko, Valery E. Lyubovitskij

摘要:

我们用因子分解假设分析了B到D(*)+ Ds0*(Ds1)衰变的分支比。B到D(*)跃迁的形状因子取自Caprini、Lellouch和Neubert基于重夸克自旋对称性和色散约束(包括短距离和功率修正)进行的独立于模型的分析。轻子衰变常数fDs0* 和fDs1的计算假定分子结构的Ds0 * 和Ds1介子。计算了B介子二体衰变的分支比,并与实验数据和其它理论结果进行了比较。

英文摘要:

We analyze the branching ratios of B to D(*) + Ds0*(Ds1) decays using the factorization hypothesis. The B to D(*) transition form factors are taken from a model-independent analysis done by Caprini, Lellouch and Neubert based on heavy quark spin symmetry and dispersive constraints, including short-distance and power corrections. The leptonic decay constants fDs0* and fDs1 are calculated assuming a molecular structure for the Ds0* and Ds1 mesons. The calculated branching ratios of B-meson two-body decays are compared with experimental data and other theoretical results.

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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