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arXiv 0810.0543hep-ph
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重子夸克极限下的半轻子衰变

Semileptonic decays in the limit of a heavy daughter quark

Matthew Dowling, Jan H. Piclum, Andrzej Czarnecki

摘要:

半轻子衰变b到c l v的速率是在b夸克和c夸克质量相等的极限附近展开的,计算的精度为100 μ s ^[2]。证实了最近在c夸克的极限附近得到的结果,c夸克比b轻得多。描述了新的扩展方法的细节。

英文摘要:

The rate of the semileptonic decay b to c l v is calculated with order alphas^2 accuracy, as an expansion around the limit of equal masses of the b and c quarks. Recent results obtained around the limit of the c-quark much lighter than b are confirmed. Details of the new expansion method are described.

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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