摘要
Inspired by the newly observed X0(2900)and Xj(2900)states at LHCb,the K^(*)D^(*)and KD_(1)interactions are studied in the quasipotential Bethe-Salpeter equation approach combined with the one-boson-exchange model.The bound and virtual states from the interactions are searched for as poles in the complex energy plane of scattering amplitude.A bound state with I(JP)=0(0^(+))and a virtual state with 0(1^(-))are produced from the K^(*)D^(*)interaction and KD_(1)interaction,and can be related to the X_(0)(2900)and Xi(2900)observed at LHCb,respectively.A bound state with I(JP)=0(1^(+))and a virtual state with I(J_(P))=0(2_(+))are also predicted from the KD_(1)interaction,with the same a value,to reproduce the X_(0.1)(2900),which can be searched for in future experiments.
作者
Jun He
Dian-Yong Chen
何军;陈殿勇(Department of Physics and Institute of Theoretical Physics,Nanjing Normal University,Nanjing 210097,China;School of Physics,Southeast University,Nanjing 210094,China)
基金
Supported by the National Natural Science Foundation of China(11675228,11775050)
the Fundamental Research Funds for the Central Universities。
