CP Violation and CKM Phases from Time-dependences of Untagged $B_s$ Decays

Details CP Violation and CKM Phases from Time-dependences of Untagged $B_s$ Decays CP Violation and CKM Phases from Time-dependences of Untagged $B_s$ Decays

1996-09-12

arxiv.org/abs/hep-ph/9609332v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited talk given at the XXVIII International Conference on High Energy Physics - ICHEP'96, Warsaw, Poland, July 25-31, 1996,

Scientific paper

The $B_s$ system is analyzed in light of a possible width difference $\Delta\Gamma_s$ between its mass eigenstates. If $\Delta\Gamma_s$ is sizable, untagged $B_s$-meson decays may allow a probe of CP violation and moreover the extraction both of the Wolfenstein parameter $\eta$ and of the notoriously difficult to measure angle $\gamma$ of the unitarity triangle. To accomplish this ambitious task, time-dependent angular distributions for untagged $B_s$ decays into admixtures of CP eigenstates and channels that are caused by $\bar b\to\bar c u\bar s$ quark-level transitions play a key role. The work described here was done in collaboration with Isard Dunietz.

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