On testing <i>CPT</i> symmetry in <i>B</i> decays

M. Kobayashi; A. I. Sanda

doi:10.1103/PhysRevLett.69.3139

On testing CPT symmetry in B decays

M. Kobayashi and A. I. Sanda

Phys. Rev. Lett. 69, 3139 – Published 30 November 1992

Abstract

It is known that the existing experimental limit for CPT violation is rather poor—the 10% level at best. For this reason, we study experimental tests for CPT violation in B decays. We show that BB¯ mixing as well as CP-violating asymmetries can reveal CPT violation. We also point out that, with possible CPT violation, further experimental study is necessary in order to obtain the value for Δm/Γ from the rate of same-sign dilepton events.