Does CPT violation affect the B_d meson life times and decay asymmetries?

Details Does CPT violation affect the B_d meson life times and decay asymmetries? Does CPT violation affect the B_d meson life times and decay asymmetries?

2002-09-09

arxiv.org/abs/hep-ph/0209090v4

Phys.Lett. B548 (2002) 146-152

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 4 figures. Typos corrected and references added

Scientific paper

10.1016/S0370-2693(02)02843-5

We study indirect CPT violating effects in B_d meson decays and mixing, taking into account the recent constraints on the CPT violating parameters from the Belle collaboration. The life time difference of the B_d meson mass eigenstates, expected to be negligible in the standard model and many of its CPT conserving extensions, could be sizeable (\sim a few percent of the total width) due to breakdown of this fundamental symmetry. The time evolution of the direct CP violating asymmetries in one amplitude dominated processes (inclusive semileptonic B_d decays, in particular) turn out to be particularly sensitive to this effect.

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