发表机构
Centro Brasileiro de Pesquisas Físicas (CBPF)（巴西物理研究中心）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究通过S矩阵形式推导CP破坏与CPT定理的关系，提出精确测量$B^+ \to \pi^+\mu^+\mu^-$的积分CP不对称性以区分CPT约束的全局或排他性适用机制。
AI 中文摘要
CPT定理与S矩阵幺正性相结合，对B介子衰变中的CP不对称性施加了非平凡的约束~\cite{Marshak1969}。一个长期存在的问题是，这些约束是以包容的方式适用——即全局地跨所有末态——还是如Wolfenstein所论证的~\cite{Wolfenstein1991}，在末态相互作用（FSI）内排他地适用。我们提出了支撑CP破坏与CPT定理（CPV/CPT）之间关系的理论框架，通过含末态相互作用（FSI）的S矩阵形式推导了CP破坏的衰变率差异。我们提出，精确测量$B^+ \to \pi^+\mu^+\mu^-$中的积分CP不对称性可以明确区分这两种机制。
英文摘要
The CPT theorem, combined with S-matrix unitarity, imposes nontrivial constraints on CP asymmetries in B-meson decays ~\cite{Marshak1969}. A long-standing question is whether these constraints apply in an inclusive manner---globally across all final states---or exclusively, within a final state interaction (FSI) as argued by Wolfenstein ~\cite{Wolfenstein1991}. We present the theoretical framework underlying this relationship between CP violation and the CPT theorem (CPV/CPT), deriving the CP-violating rate differences through the S-matrix formalism with final-state interactions (FSI). We propose that a precise measurement of the integrated CP asymmetry in $B^+ \to π^+μ^+μ^-$ can unambiguously discriminate between the two mechanisms.
