Three-body hadronic molecules  

作　　者：K.P.Khemchandani A.Martínez Torres E.Oset 

机构地区：[1]Centro de Física Téorica,Departamento de Física,Universidade de Coimbra [2]Departamento de Física Teórica and IFIC,Centro Mixto Universidad de Valencia-CSIC

出　　处：《Chinese Physics C》2010年第9期1286-1289,共4页中国物理C（英文版）

基　　金：supported by a FPU grant of the Ministerio de Ciencia y Tecnología;K.P.Khemchandani thanks the support by the Fundaco para a Ciencia e a Tecnologia of the Ministério da Ciencia,Tecnologia e Ensino Superior of Portugal (SFRH/BPD/40309/2007);part of the EU Integrated Infrastructure Initiative Hadron Physics Project under contract number RII3-CT-2004-506078

摘　　要：In this talk,I discuss our recent studies of three-hadron systems and the resonances found therein.The studies consist of solving Faddeev equations with the input two body interactions obtained from the chiral Lagrangians.The systems which we study are either made of two mesons and a baryon or of three mesons.The motivation for these studies comes from the data on many baryon resonances,especially the ones with J ^π = 1/2 ^＋,which show a large branching ratio to the two meson-one baryon decay channels.In addition to this,several new studies at BES,BELLE,BABAR etc.,claim the existence of new meson resonances which seem to couple strongly to three-meson systems,where mostly two out of the three mesons appear as a known resonance.Hitherto,we have studied two meson-one baryon systems with strangeness =-1,0 and 1 and three-meson systems made of two-pseudoscalars and a vector meson.As we will show in this manuscript,we find many resonances which couple to three-hadrons.In this talk,I discuss our recent studies of three-hadron systems and the resonances found therein.The studies consist of solving Faddeev equations with the input two body interactions obtained from the chiral Lagrangians.The systems which we study are either made of two mesons and a baryon or of three mesons.The motivation for these studies comes from the data on many baryon resonances,especially the ones with J ^π = 1/2 ^＋,which show a large branching ratio to the two meson-one baryon decay channels.In addition to this,several new studies at BES,BELLE,BABAR etc.,claim the existence of new meson resonances which seem to couple strongly to three-meson systems,where mostly two out of the three mesons appear as a known resonance.Hitherto,we have studied two meson-one baryon systems with strangeness =-1,0 and 1 and three-meson systems made of two-pseudoscalars and a vector meson.As we will show in this manuscript,we find many resonances which couple to three-hadrons.

关 键 词：hadron resonances few-body systems.If 

分 类 号：O572.34[理学—粒子物理与原子核物理]