2016/05/31 by Guang-Juan Wang, Rui Chen, Li Ma +2 · 3 citations
Earth and Planetary Sciences · Mathematics · Physics and Astronomy · #Baryon #Charm (quantum number) #Condensed matter physics #Diquark #High-Energy Particle Collisions Research #High-pressure geophysics and materials #Magnetic moment #Mathematics #Nuclear physics #Observable #Particle physics #Pentaquark #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #State (computer science) #hep-ex #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.94.094018
published as Phys. Rev. D 94, 094018 (2016) · 17 pages
openalex publication_date 2016/11/15 · arxiv created 2016/11/22 · arxiv updated 2016/11/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The magnetic moment of a baryon state is an equally important dynamical observable as its mass, which encodes crucial information of its underlying structure. According to the different color-flavor structure, we have calculated the magnetic moments of the hidden-charm pentaquark states with the isospin (I,I3)=((1)/(2),(1)/(2)) and JP=(1)/(2)^\ifmmode±\else\textpm\fi, (3)/(2)^\ifmmode±\else\textpm\fi, (5)/(2)^\ifmmode±\else\textpm\fi, (7)/(2)+ in the molecular model, the diquark-triquark model, and the diquark-diquark-antiquark model, respectively. Although a good description for the pentaquark mass spectrum and decay patterns has been obtained in all three models, different color-flavor structures lead to different magnetic moments, which can be used to pin down their inner structures and distinguish various models.