论文标题
$ b $介子衰变的分支分数衰变
Branching Fractions of $B$ Meson Decays in Mesogenesis
论文作者
论文摘要
在$ b $ segenaseisigry中生产物质 - 抗逆不是对称性的不对称机制直接与违反$ b $ ersons的看似baryon衰变的分支分数直接相关。实现观察到的重子不对称要求，这种衰减的分支分数大于$ 10^{ - 7} -10^{ - 5} $。 $ b $工厂和强子壁采用的实验搜索针对特定的衰变模式。因此，计算每个衰减的独家分支部分是测试中生物发生的关键步骤。在这项工作中，我们使用QCD光锥总和规则来计算造成重子不对称的各种可能通道的形式因素和分支分数。使用结果，我们评论对当前和将来的实验搜索的影响。
Production of the matter-antimatter asymmetry in the $B$-Mesogenesis mechanism is directly related to the branching fraction of seemingly baryon number violating decays of $B$ mesons into a light Standard Model baryon and missing energy. Achieving the observed baryon asymmetry requires that the branching fraction for such decays be greater than about $10^{-7}-10^{-5}$. Experimental searches at $B$ Factories and Hadron Colliders target specific decay modes. Therefore, computing the exclusive branching fraction for each decay is a critical step towards testing Mesogenesis. In this work we use QCD Light Cone Sum Rules to compute the form factors and branching fractions of the various possible channels contributing to the baryon asymmetry. Using the results, we comment on implications for current and future experimental searches.
