Nonresonant contributions inB→ρπdecay

2002/04/30 by Jusak Tandean, Susan Gardner, S. Gardner · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevd.66.034019

published as Phys.Rev.D66:034019,2002 · 15 pages, 3 figures; minor changes, version to appear in Phys. Rev. D

arxiv created 2002/07/22 · openalex publication_date 2002/08/20 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We consider nonresonant contributions in the Dalitz-plot analysis of \stackrel\ensuremath→B\ensuremathρ\stackrel\ensuremath→\ensuremathπ\ensuremathπ⁺\ensuremathπ^\ensuremath-\ensuremathπ⁰ decay and their potential impact on the extraction of the Cabibbo-Kobayashi-Maskawa parameter \ensuremathα. In particular, we examine the role of the heavy mesons B^* and B₀, via the process \stackrel\ensuremath→B\ensuremathπ(B^*,B₀)\ensuremath→\ensuremathπ⁺\ensuremathπ^\ensuremath-\ensuremathπ⁰, and their interference with resonant contributions in the \ensuremathρ-mass region. We discuss the inherent uncertainties and suggest that the effects may be substantially smaller than previously indicated.

Citations

• Chiral symmetry amplitudes in the S-wave isoscalar and isovector channels and the σ, f0(980), a0(980) scalar mesons
• N/Ddescription of two meson amplitudes and chiral symmetry
• CP-Violation in the Renormalizable Theory of Weak Interaction

Cited by

• Direct CP-violation in untagged B-meson decays
• Chiral dynamics and B→ 3π decay
• Direct CP violation in B → π ⁺ π^-π : determination of α without discrete ambiguity
• Dalitz plot analysis ofB±→π±π±π∓decays