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arXiv 1506.08780hep-phhep-lat
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$Λ_b \to Λ_c$形状因子的零回弹和规则

Zero-Recoil Sum Rules for $Λ_b \to Λ_c$ Form Factors

Thomas Mannel, Danny van Dyk

摘要:

我们建立了一个零反冲和规则来约束$Λ_b \to Λ_c$跃迁的形状因子。我们的结果进行了比较与最近的晶格计算这些转变。我们发现与$B \to D^*$的情况相同的情况:晶格结果实际上使求和规则饱和,基本上没有为激发态留下空间。

英文摘要:

We set up a zero recoil sum rule to constrain the form factors of the $Λ_b \to Λ_c$ transition. Our results are compared with the recent lattice calculation for these transitions. We find the same situation as in the case for $B \to D^*$: The lattice results practically saturate the sum rules, leaving basically no room for excited states.

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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