Analysis of the form factors of B_c→ D^(*), D_s^(*) and their nonleptonic decays

2024/11/30 by Bin Wu, Wu, Bin, Guoliang Yu +7
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.2412.00515

openalex publication_date 2024/11/30 · openalex created_date 2024/12/05 · openalex updated_date 2026/07/28

Abstract

This article is devoted to calculating the form factors of B_c → D^*, B_c → D, B_c → D_s^* and B_c → D_s transitions in the framework of three-point QCD sum rules. At the QCD side, the contributions of ⟨qq⟩, ⟨qg_sσGq⟩, ⟨ g_s²G²⟩, ⟨ f³G³⟩ and ⟨qq⟩ ⟨ g_s²G²⟩ are taken into account. With the obtained form factors, the decay widths and branching ratios of several two-body nonleptonic decay processes B_c → η_c D^*, η_c D, J/ψD^*, J/ψD, η_c D_s^*, η_c D_s, J/ψD_s^* and J/ψD_s are predicted. These results about the form factors and decay properties of B_c meson provide useful information for us to study the heavy-quark dynamics.

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