Final state phases in B ---> D pi, d* pi, and D(rho) decays
Journal
Physical Review
Journal Volume
D67
Pages
074013
Date Issued
2002-12
Author(s)
Rosner, Jonathan L.
Abstract
The final-state phases in B̄ → D π, D* π, and D ρ decays appear to follow a pattern similar to those in D → K̄ π, K̄* π, and K̄ ρ decays. Each set of processes is characterized by three charge states but only two independent amplitudes, so the amplitudes form triangles in the complex plane. For the first two sets the triangles appear to have nonzero area, while for the D ρ or K̄ ρ decays the areas of the triangles are consistent with zero. Following an earlier discussion of this behavior for D decays, a similar analysis is performed for B decays, and the relative phases and magnitudes of contributing amplitudes are determined. The significance of recent results on B̄0 → D(*)0 K̄(*)0 is noted. Open theoretical and experimental questions are indicated. © 2003 The American Physical Society.
Type
journal article