Mixing of two-level unstable systems

被引：1
|
作者：
Castro, GL
Muñoz, JH
Pestieau, J
机构：
[1] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Fis, Mexico City 07000, DF, Mexico
[2] Univ Tolima, Dept Fis, Ibague, Colombia
[3] Univ Catholique Louvain, Inst Phys Theor, B-1348 Louvain, Belgium
来源：
EUROPEAN PHYSICAL JOURNAL C | 1999年 / 9卷 / 03期
关键词：
D O I：
10.1007/s100520050033
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Unstable particles can be consistently described in the framework of quantum field theory Starting from the full S matrix amplitudes of B+ --> (2 pi, 3 pi)l(+)nu decays as examples of processes where the rho-omega resonances dominate, we propose a prescription for the mixing of two "quasi-physical": unstable states that differs from the one obtained from the diagonalization of the M - i Gamma/2 non-Hermitian Hamiltonian. We discuss some important consequences for CP violation in the K-L - K-S system.
引用
收藏
页码：409 / 411
页数：3
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