2020/08/15 by Ru-Min Wang, Wang, Ru-Min, Xiao-Dong Cheng +9 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.2008.06624
17 pages, 2 figures
arxiv created 2020/08/15 · openalex publication_date 2020/08/15 · arxiv updated 2021/02/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The weak and electromagnetic radiative baryon decays of octet T8, decuplet T10, single charmed anti-triplet Tc3 and sextet Tc6, single heavy bottomed anti-triplet Tb3 and sextet Tb6 are investigated by using SU(3) flavor symmetry irreducible representation approach. We analyze the contributions from a single quark transition q1→ q2γ and W exchange transitions, and find that the amplitudes could be easily related by SU(3) flavor symmetry in the Tb3,b6 weak radiative decays, Tc3,c6 weak radiative decays, T10→ T8γ weak decays, T10→ T'10γ weak decays and T10→ T8γ electromagnetic decays. Nevertheless, the amplitude relations are a little complex in the T8→ T'8γ and T8→ T10γ weak decays due to quark antisymmetry in T8 and W exchange contributions. Predictions for branching ratios of Λ0b→ nγ, Ξ-b→ Ξ-γ, Ξ-b→ Σ-γ, Ξ0b→ Σ0γ, Ξ0b→ Λ0γ, Ξ0b→ Ξ0γ, Ξ*→ Ξγ, Σ*0→ Σ0γ, Δ0→ nγ and Δ+→ pγ are given. The results in this work can be used to test SU(3) flavor symmetry approach in the radiative baryon decays by the future experiments at BESIII, LHCb and Belle-II.