论文标题
探索高阶风味总和规则
An Exploration of Higher Order Flavor Sum Rules
论文作者
论文摘要
我们探讨了高阶风味和规则的想法，即在风味对称参数中符合更高订单的总和规则。特别是，我们考虑基于$ b \ tonπ$衰减的同胞总和规则，以及基于$ b_d $的u-spin sum规则，$ b_s $衰减到$ n $ opparded pions和/或kaons。我们还证明，通过考虑衰减模式，最终状态介子$ n $的衰减模式增加了任意订单。最后，我们确定了在利用这些总和时需要解决的各种理论和实用问题。
We explore the idea of higher-order flavor sum rules, i.e. sum rules that hold to higher orders in the flavor symmetry-breaking parameters. In particular, we consider isospin sum rules based on $B \to nπ$ decays, and U-spin sum rules based on $B_d$ and $B_s$ decays to $n$ charged pions and/or kaons. We also demonstrate that sum rules exist to arbitrary orders by considering decay modes with increasing number of final state mesons $n$. Finally, we identify various theoretical and practical issues that need to be addressed in utilizing these sum rules.
