Neural network study of hidden-charm pentaquark resonances  

作　　者：Halil Mutuk 

机构地区：[1]Physics Department, Faculty of Arts and Sciences, Ondokuz Mayis University

出　　处：《Chinese Physics C》2019年第9期19-25,共7页中国物理C（英文版）

摘　　要：Recently,the LHCb experiment announced the observation of hidden-charm pentaquark states Pc(4312),Pc(4440),and Pc(4457)nearΣcDandΣcD*thresholds.In this present work,we studied these pentaquarks in the framework of the nonrelativistic quark model with four types of potential.We solved five-body Schrodinger equation by using the artificial neural network method and made predictions of parities for these states,which are not yet determined by experiment.The mass of another possible pentaquark state near the D*Σc*with JP=5/2-is also calculated.Recently,the LHCb experiment announced the observation of hidden-charm pentaquark states P,(4312),P_c(4440),and P_c(4457)near Σ_cD and Σ_cD~* thresholds.In this present work,we studied these pentaquarks in the framework of the nonrelativistic quark model with four types of potential.We solved five-body Schrodinger equation by using the artificial neural network method and made predictions of parities for these states,which are not yet determined by experiment.The mass of another possible pentaquark state near the D~*Σ_c~* with J^P=5/2^-is also calculated.

关 键 词：hidden-charm RESONANCES PENTAQUARK neural networks 

分 类 号：O4[理学—物理]