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arXiv 0802.3609hep-ph
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中性介子混合的新认识

A fresh look at neutral meson mixing

M. A. Gomshi Nobary, B. Mojaveri

摘要:

本文证明了支配中性介子系统时间演化的有效哈密顿量的本征矢的完备双正交规范集的存在是这种哈密顿量可对角化的必要条件。我们还研究了探测$CPT$不变性的可能性,通过观察级联衰变类型$P^{\circ}(\bar{P^{\circ}})\to \{M_a,M_b\}X\to fX$的时间依赖性,通过使用这样的基础和准确地确定$CPT$破坏参数通过比较标记的$P^{\circ}$和标记的$\bar{P^{\circ}}$的级联衰变的时间依赖性。

英文摘要:

In this work we show that the existence of a complete biorthonormal set of eigenvectors of the effective Hamiltonian governing the time evolution of neutral meson system is a necessary condition for diagonalizability of such a Hamiltonian. We also study the possibility of probing the $CPT$ invariance by observing the time dependence of cascade decays of type $P^{\circ}(\bar{P^{\circ}})\to \{M_a,M_b\}X\to fX$ by employing such basis and exactly determine the $CPT$ violation parameter by comparing the time dependence of the cascade decays of tagged $P^{\circ}$ and tagged $\bar{P^{\circ}}$.

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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