Year: 2025
Type: conference-paper
Abstract: We report theoretical results for the $\Omega_c(3120)$ state, observed by the LHCb collaboration, based on the molecular picture. The mass of the $\Omega_c(3120)$ state is reproduced from the $s$-wave $\Xi^*_c \bar K$ and $\Omega^*_c \eta$ channels. The width of the $\Omega_c(3120)$ is reproduced by introducing the $d$-wave $\Xi_c \bar{K}$ channel in addition to the other two channels. Furthermore, we calculate the partial decay widths of the $\Omega_c(3120)$ into $\Xi_c \bar{K}$ and $\pi \Xi_c \bar{K}$, following a discussion on the molecular nature of the $\Omega(2012)$ state. We find that the scattering length and effective range, along with the binding energy and width of the $\Omega_c(3120)$ state, can provide useful information for discussing the nature of the $\Omega_c(3120)$ state in the near future.
DOI: 10.22323/1.465.0056
Authors: Natsumi Ikeno, Wei-Hong Liang, Eulogio Oset
Institutions: Tottori University, Kobe University, Guangxi Normal University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4407258750