2020/04/23 by Li-Ye Xiao, Xian-Hui Zhong · 2 citations
Mathematics · Physics and Astronomy · #Algorithm #Baryon #Combinatorics #Coupling (piping) #Crystallography #High-Energy Particle Collisions Research #Lambda #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #State (computer science) #hep-ph
paper · pdf · doi:10.1103/physrevd.102.014009
published as Phys. Rev. D 102, 014009 (2020) · 7 pages, 2 figures
arxiv created 2020/04/23 · openalex created_date 2020/05/01 · openalex publication_date 2020/07/08 · arxiv updated 2020/07/15 · openalex updated_date 2026/08/05
In the present work, we analyze the P-wave singly heavy baryon spectrum belonging to 6F by combining the observations of the heavy baryon states, and restudy the strong decays of the 1P-wave \mathrm\ensuremathΣb states within the j\text\ensuremath-j coupling scheme using the chiral quark model. We obtain that (i) the structure \mathrm\ensuremathΣb(6097) observed in the \mathrm\ensuremathΛb\ensuremathπ final state may arise from the overlapping of \mathrm\ensuremathΣb|JP=(3)/(2)^\ensuremath-,2⟩ and \mathrm\ensuremathΣb|JP=(5)/(2)^\ensuremath-,2⟩. (ii) The broad structure \mathrm\ensuremathΣb(6072) observed in the \mathrm\ensuremathΛb\ensuremathπ\ensuremathπ final state may arise from the overlapping of \mathrm\ensuremathΣb|JP=(1)/(2)^\ensuremath-,1⟩ and \mathrm\ensuremathΣb|JP=(3)/(2)^\ensuremath-,1⟩. (iii) The missing state \mathrm\ensuremathΣb|JP=(1)/(2)^\ensuremath-,0⟩ is most likely to be a narrow state with a width of \mathrm\ensuremathΓ\ensuremath∼10 MeV, and mainly decays into the \mathrm\ensuremathΛb\ensuremathπ channel.