The sigma and rho in D and B decays

2001/07/31 by N. Paver, Paver, N., Riazuddin · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0107330

12 pages, LaTex, 2 figures

arxiv created 2001/07/31 · openalex publication_date 2001/07/31 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study the D⁺ -> sigma pi⁺, D⁺ -> rho⁰ pi⁺, B^- -> sigma pi^-, B^- -> rho⁰ pi^- and B⁰ -> rho^± pi^∓ decays in a valence quark triangle model, incorporating chiral symmetries. We find a good agreement with recent experimental data for D⁺ -> sigma pi⁺ and for D⁺ -> rho⁰ pi⁺. We point out that a "long-distance" contribution due to the axial vector a₁ meson pole, calculated by using chiral symmetry, can be relevant to explain D⁺-> rho⁰ π⁺ and for lowering the ratio R=Br(B⁰ -> rho^± pi^∓)/Br(B^- -> rho⁰ pi^-) to be consistent with its phenomenological determination, within the large experimental uncertainity.

Cited by

• Chiral dynamics and B→ 3π decay
• Rescattering and chiral dynamics inB→ρπdecay

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