New theory highlights on B_c decays

2023/11/09 by Nicola Losacco, Losacco, Nicola
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Superconducting Materials and Applications

paper · pdf · doi:10.48550/arxiv.2311.05429

openalex publication_date 2023/11/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present recent results in semileptonic and non-leptonic exclusive B_c decays to charmonium states both in S-wave, J/ψ and η_c, and in P-wave, χ_cJ and h_c. The analysis, based on the heavy quark spin symmetry (HQSS), produces relations among form factors that parametrize the hadronic matrix elements in the amplitudes of the decays. These relations are helpful to control the hadronic uncertainty affecting these processes. Furthermore, B_c decays allow us to get hints on the structure of states like χ_c1(3872), whose exotic or ordinary charmonium nature is debated.

Related

• Semileptonic B_c meson decays to S-wave charmonium states
• Unravelling theoretical challenges in understanding B_c meson decay
• The decays of B_c meson to P-wave charmonium χ_c(h_c) and to leptons with gluon bremsstrahlung
• Correlated study on some B_c→ P and B_c→ S wave channels in light of new inputs
• Investigating B_c semileptonic decays