In this study,we investigate possible molecular states composed of two charmed strange baryons from theΞ_(c)^((′,∗))Ξ_(c)^((′,∗))interaction and their hidden-charm hidden-strange partners from theΞ_(c)^((′,∗))Ξ...In this study,we investigate possible molecular states composed of two charmed strange baryons from theΞ_(c)^((′,∗))Ξ_(c)^((′,∗))interaction and their hidden-charm hidden-strange partners from theΞ_(c)^((′,∗))Ξ¯_(c)^((′,∗))interaction.With the aid of heavy quark chiral effective Lagrangians,the interactions of charmed strange baryons are described with light meson exchanges.The potential kernels are constructed and inserted into the quasipotential Bethe–Salpeter equation.The bound states are produced from most interactions considered,which suggests that strong attractions exist widely between the charmed strange baryons.Experimental search for these types of molecular states is suggested in future high-precision measurements.展开更多
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 ...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.展开更多
基金Supported by the National Natural Science Foundation of China(11675228)。
文摘In this study,we investigate possible molecular states composed of two charmed strange baryons from theΞ_(c)^((′,∗))Ξ_(c)^((′,∗))interaction and their hidden-charm hidden-strange partners from theΞ_(c)^((′,∗))Ξ¯_(c)^((′,∗))interaction.With the aid of heavy quark chiral effective Lagrangians,the interactions of charmed strange baryons are described with light meson exchanges.The potential kernels are constructed and inserted into the quasipotential Bethe–Salpeter equation.The bound states are produced from most interactions considered,which suggests that strong attractions exist widely between the charmed strange baryons.Experimental search for these types of molecular states is suggested in future high-precision measurements.
基金Supported by the National Natural Science Foundation of China(11675228,11775050)the Fundamental Research Funds for the Central Universities。
文摘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.
