Ξ^-t quasibound state instead of ΛΛnn bound state

作     者：H.Garcilazo A.Valcarce J.Vijande H.Garcilazo;A.Valcarce;J.Vijande

作者机构：Escuela Superior de Física y MatemáticasInstituto Politécnico NacionalEdificio 907738 México D.F.Mexico Departamento de Física FundamentalUniversidad de Salamanca37008 SalamancaSpain Departamento de Física AtómicaMolecular y NuclearUniversidad de Valencia(UV)and IFIC(UV-CSIC)46100 ValenciaSpain IRIMED Joint Research Unit(IIS La Fe-UV)46100 ValenciaSpain 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2020年第44卷第2期

页      面：94-100页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 0703[理学-化学] 0704[理学-天文学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：partially funded by COFAA-IPN(México) Ministerio de Economía,Industria y Competitividad and EU FEDER(FPA2016-77177) 

主　　题：baryon-baryon interactions few-body systems Faddeev equations 

摘      要：The coupledΛΛnn-Ξ-pnn system was studied to investigate whether the inclusion of channel coupling is able to bind theΛΛnn *** use a separable potential three-body model of the coupledΛΛnn-Ξ-pnn system and a variational four-body calculation with realistic *** results exclude the possibility of aΛΛnn bound state by a large ***,we found aΞ-t quasibound state above theΛΛnn threshold.