Probing CPT violation in meson mixing by a noncyclic phase

被引：20

作者：

Capolupo, Antonio ^{[1
]}

机构：

[1] Univ Salerno, Dipartimento Matemat & Informat, I-84100 Salerno, Italy

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 11期

关键词：

GEOMETRIC PHASE; QUANTUM; OSCILLATIONS; INVARIANCE; EVOLUTION;

D O I：

10.1103/PhysRevD.84.116002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The presence of noncyclic phases is revealed in the time evolution of mixed meson systems. Such phases are related to the parameter z describing the CPT violation; moreover, a nonzero phase difference between particle and antiparticle arises only in the presence of CPT symmetry breaking. Thus, a completely new test for the CPT invariance can be provided by the study of such phases in mixed mesons. Systems which are particularly interesting for such an analysis are the B-s(0) - (B) over bar (0)(s) and the K-0 - (K) over bar (0) ones. In order to introduce noncyclic phases, some aspects of the formalism describing the mixed neutral mesons are analyzed. Since the effective Hamiltonian of systems like K-0 - (K) over bar (0), B-0 - (B) over bar (0), B-s(0) - (B) over bar (0)(s), D-0 - (D) over bar (0)(s) is non-Hermitian and non-normal, it is necessary to diagonalize it by utilizing the rules of non-Hermitian quantum mechanics.

引用

页数：10

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