Emergence of molecular-type characteristic spectrum of hidden-charm pentaquark with strangeness embodied in the PψsΛ(4338) and Pcs(4459)

• Published in: Physics letters. B Vol. 835; p. 137583
• Main Authors: Wang, Fu-Lai, Liu, Xiang
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 10.12.2022; Elsevier
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/j.physletb.2022.137583

Inspired by the newly observed PψsΛ(4338) and the reported Pcs(4459), we indicate the existence of the molecular-type characteristic mass spectrum for hidden-charm pentaquark with strangeness. It shows that the Pcs(4459) may contain two substructures corresponding to the ΞcD¯⁎ molecular states with JP=1/2− and 3/2−, while there exists the corresponding ΞcD¯ molecular state with JP=1/2−. As the prediction, we present another characteristic mass spectrum of the Ξc′D¯(⁎) molecular states. Experimental confirmation of these characteristic mass spectra is a crucial step of constructing hadronic molecular family.