Enhancement of CP Violation in B^+- to K_i^+- D^0 By Resonant Effects

Details Enhancement of CP Violation in B^+- to K_i^+- D^0 By Resonant Effects Enhancement of CP Violation in B^+- to K_i^+- D^0 By Resonant Effects

1994-09-06

arxiv.org/abs/hep-ph/9409229v1

Phys.Lett.B341:372-378,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages

Scientific paper

10.1016/0370-2693(94)01317-6

Resonance width effects in charged $B$ decays to neutral $D$ mesons and excited kaon states $K_i$ around 1400 MeV are shown to lead to large calculable final state phases. $CP$ asymmetries are defined for any charged $B$ decay to three pseudoscalar mesons involving intermediate overlapping resonance states. Asymmetries up to about 10$\%$ are found in $B^+\to K^+_i D^0\to (K\pi)^+ D^0$. Decay distributions can be used to determine the weak phase $\gamma$ of the Cabibbo-Kobayashi-Maskawa (CKM) matrix. No separation of the contributions from individual resonances is required.

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