Indirect Violation of CP, T and CPT in the Bd-system

Details Indirect Violation of CP, T and CPT in the Bd-system Indirect Violation of CP, T and CPT in the Bd-system

2000-09-27

arxiv.org/abs/hep-ph/0009317v1

Nucl.Phys.Proc.Suppl. 93 (2001) 268-271

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, talk given at 4th International Conference on Hyperons, Charm and Beauty Hadrons, Valencia, Spain, 27-30 Jun 2000

Scientific paper

10.1016/S0920-5632(00)01116-6

The problem of indirect violation of discrete symmeties CP, T and CPT in a neutral meson system can be described using two complex parameters epsilon and delta, which are invariant under rephasing of meson and quark fields. For the Bd system, where the width difference between the physical states is negligible, only Re(delta) and Im(epsilon) survive. As a consequence, the traditional observables constructed for kaons, which are based on flavour tag, are not useful for the analogous study in this system. We describe how using a CP tag and studying CP-to-flavour transitions of the B mesons, we may build asymmetries, alternative to those used for the kaon, which enable us to test T and CPT invariances of the effective hamiltonian for the Bd system.

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