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

页码：409 / 411

页数：3

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