Final State Interactions, Resonances and CP Violation in D and B Exclusive Decays

Abstract

Hadron resonances affect nonexotic $D^o$ decays but not $B$ decays which are far from the resonance region. We obtain new information from {\bf exclusive} decays and show that interference between colour favoured and colour suppressed diagrams is {\bf constructive} in $B$ and (some) $D$ decays in contrast to the inclusive decays where a net Pauli destructive interference is claimed. We suggest that a systematic study of $B$ decay final states containing excited mesons such as $a_{1}D$ or $\pi D^{\ast \ast }$ show opposite behaviour for $B^o$ and $B^{+}$ relative to the ground state channels. We give inequalities among final state branching ratios for several $B$ and $D$ channels. Decays into $\pi K^{(\ast )}$ and $\rho K^{(\ast )}$ appear to show different behaviours.

References in corpus (3)

• Systematics of soft final state interactions in $B$ decay
• Regge asymptotics and color suppressed heavy meson decays
• Final State Interactions in $B->D\rho$ and $B->D^{\ast }\pi$ Decays

Cited by in corpus (13)

• Composition of the Pseudoscalar Eta and Eta' Mesons
• Final-State Phases in Charmed Meson Two-Body Nonleptonic Decays
• Penguins, Trees and Final State Interactions in B Decays in Broken SU3
• Flavor Symmetry, K^0-\bar{K}^0 Mixing and New Physics Effects on CP Violation in D^{\pm} and D^{\pm}_s Decays
• FSI Rescattering in $B^{\pm }$ Decays via States with $\eta ,{\eta }^{\prime },\omega$ and $\varphi$
• Relations for two body B Decays to Charmonium and tests for $\eta -{\eta }^{\prime }$ mixing
• Extracting γfrom Bd(t) -> D(*)+ D(*)- and Bd -> Ds(*)+ D(*)- Decays
• The role of K^*_0(1430) in D->PK and τ->KPν_τdecays
• Analysis of new charmless strange B decay data leaves high $B\to K{\eta }^{\prime }$ and $B\to K{\eta }^{\prime }X$ still unexplained
• Possible Explanation Why τ_{B^{\pm}}\simτ_{B^0} But τ_{D^{\pm}}\sim τ_{D^0}
• Puzzles in Cabibbo-Suppressed Charm Decays
• Test for exotic isoscalar resonance dominating $D^0\to {\pi }^{+}{\pi }^{-}{\pi }^0$ decays
• Inelastic Rescattering and CP Asymmetries in D -> pi+ pi-, pi0 pi0