Work

All-heavy pentaquarks

Year: 2025

Type: article

Abstract: In a nonrelativistic quark model framework, we carry out a calculation of the mass spectrum for the low-lying 1 S all-heavy pentaquark states by adopting the explicitly correlated Gaussian method. The obtained states are compact and lie far above the lowest dissociation baryon-meson threshold. Moreover, using the obtained masses and wave functions we evaluate the fall-apart decay properties within a quark-exchange model. The results show that the 1 S all-heavy pentaquark states have a fairly narrow fall-apart width, which scatters in the range of ∼ 0.1 – 4.0 MeV . Their dominant fall-apart decay channels may be ideal for searching for their signals in future experiments.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.111.056013

Authors: Zhi-Biao Liang, Feng-Xiao Liu, Xian-Hui Zhong

Institutions: Hunan Normal University, Institute of High Energy Physics

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: National Natural Science Foundation of China

Awards: G3576020281, G8927267043