D D A, D^*D^*A and D^* D A vertices in the light-cone QCD and considering B⁰→ K₁⁺ π^- branching ratio

2020/03/09 by S. Momeni, Momeni, S., R. Khosravi +1
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

paper · pdf · doi:10.48550/arxiv.2003.04165

openalex publication_date 2020/03/09 · openalex created_date 2020/03/13 · openalex updated_date 2026/07/28

Abstract

We investigate the strong coupling constants of D D A, D^*D^*A and D^* D A vertices in the framework of the light-cone QCD sum rules, where A is an axial vector meson such as a₁, b₁, K_1A, K_1B, K₁(1270) and K₁(1400). Using the strong coupling constants of D_s D K₁, D_s^* D K₁ and D_s^* D^* K₁ vertices for K₁(1270) and K₁(1400) mesons, we evaluated the branching ratios of the non-leptonic decays B⁰→ K₁⁺(1270,1400) π^-. Our results for the branching ratios of these decays are a good agreement with the experimental values.

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