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arXiv 0907.4774hep-ph
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树能级半轻子$Σ_{b}$到核子在光锥中衰变的QCD求和规则

Tree Level Semileptonic $Σ_{b}$ to Nucleon Decay in Light Cone QCD Sum Rules

K. Azizi, M. Bayar, A. Ozpineci, Y. Sarac

摘要:

在轻锥QCD求和规则框架下,利用重自旋1/2的内插流、$Σ_{b}$重子和核子分布振幅的最一般形式,计算了半轻子$Σ_{b}\to Nlν$衰变的跃迁形状因子.结果表明,形状因子满足重夸克有效理论关系。相关的形状因子的结果被用来估计这种过渡的衰减率。

英文摘要:

Using the most general form of the interpolating current of the heavy spin 1/2, $Σ_{b}$ baryon and distribution amplitudes of the nucleon, the transition form factors of the semileptonic $Σ_{b}\to Nlν$ decay are calculated in the framework of light cone QCD sum rules. It is obtained that the form factors satisfy the heavy quark effective theory relations. The obtained results for the related form factors are used to estimate the decay rate of this transition.

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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