2021/06/30 by Ming-Wei Li, Zhan-Wei Liu, Zhi-Feng Sun +1 · 2 citations
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1103/physrevd.104.054016
published as Phys. Rev. D 104, 054016 (2021) · 8 pages, 5 tables; version appeared in Phys. Rev. D
arxiv created 2021/09/16 · arxiv updated 2021/09/22
We study the magnetic moments and transition magnetic moments of Pc and Pcs states in the molecular picture. We first revisit the magnetic moments of Pc states as the S wave molecular states without coupled channel effects. The coupled channel effects and the D wave contributions are then investigated carefully. The coupled channel effects contribute to the change of 0.1∼ 0.4 nuclear magneton μN for most cases while the D wave only induces the variation of less than 0.03 ~μN. In addition, we obtain the transition magnetic moments between different Pc states and the related electromagnetic decay widths of Pc'→ Pcγ. The magnetic moments of Pcs are much different for the assumption of spin being 1/2 and 3/2. The study of electromagnetic properties will help us disclose further the structure of these unconventional states.