We predict a new physical phenomenon,induced fission-like process and chain reaction of hadronic molecular states.As a molecular state,if induced by a D meson,the X(3872)can split into D■final state which is forbidde...We predict a new physical phenomenon,induced fission-like process and chain reaction of hadronic molecular states.As a molecular state,if induced by a D meson,the X(3872)can split into D■final state which is forbidden due to the spin-parity conservation.The breeding of the D meson of the reaction,such as D^(0)X(3872)→D^(0)■0D^(0),makes the chain reaction of X(3872)matter possible.We estimate the cross section of the D meson induced fission-like process of X(3872)into two D mesons.With very small D^(0) beam momentum of 1 e V,the total cross section reaches an order of 1000 b,and decreases rapidly with the increasing beam momentum.With the transition of D^(*)meson in molecular states to a D meson,the X(3872)can release large energy,which is acquired by the final mesons.The momentum distributions of the final D mesons are analyzed.In the laboratory frame,the spectator D meson in molecular state concentrates in the low momentum area.The energy from the transition from D^(*)to D meson is mainly acquired by two scattered D mesons.The results suggest that the D meson environment will lead to the induced fission-like process and chain reaction of the X(3827).Such a phenomenon can be extended to other hadronic molecular states.展开更多
In this work,we study the doubly charmed dibaryon states with the qqqqcc(q=u,d,s)configuration.The mass spectra of doubly charmed dibaryon states are obtained systematically within the chromomagnetic interaction model...In this work,we study the doubly charmed dibaryon states with the qqqqcc(q=u,d,s)configuration.The mass spectra of doubly charmed dibaryon states are obtained systematically within the chromomagnetic interaction model.In addition to the mass spectrum analysis,we illustrate their two-body strong decay behaviours.Our results suggest that there may be narrow states or even stable states that cannot decay through the strong interaction.We hope that our results will provide valuable information for further experimental searches for doubly charmed dibaryon states.展开更多
基金supported by the China National Funds for Distinguished Young Scientists(Grant No.11825503)the National Key Research and Development Program of China(Grant No.2020YFA0406400)+2 种基金the 111 Project(Grant No.B20063)the National Natural Science Foundation of China(Grant Nos.12047501,12175091,11965016,11775050,and 11775050)CAS Interdisciplinary Innovation Team,and the Fundamental Research Funds for the Central Universities(Grant No.lzujbky-2021-sp24)。
文摘We predict a new physical phenomenon,induced fission-like process and chain reaction of hadronic molecular states.As a molecular state,if induced by a D meson,the X(3872)can split into D■final state which is forbidden due to the spin-parity conservation.The breeding of the D meson of the reaction,such as D^(0)X(3872)→D^(0)■0D^(0),makes the chain reaction of X(3872)matter possible.We estimate the cross section of the D meson induced fission-like process of X(3872)into two D mesons.With very small D^(0) beam momentum of 1 e V,the total cross section reaches an order of 1000 b,and decreases rapidly with the increasing beam momentum.With the transition of D^(*)meson in molecular states to a D meson,the X(3872)can release large energy,which is acquired by the final mesons.The momentum distributions of the final D mesons are analyzed.In the laboratory frame,the spectator D meson in molecular state concentrates in the low momentum area.The energy from the transition from D^(*)to D meson is mainly acquired by two scattered D mesons.The results suggest that the D meson environment will lead to the induced fission-like process and chain reaction of the X(3827).Such a phenomenon can be extended to other hadronic molecular states.
基金Supported by the China National Funds for Distinguished Young Scientists(11825503)the National Key Research and Development Program of China(2020YFA0406400)+2 种基金the 111 Project(B20063)the National Natural Science Foundation of China(12175091,11965016,12247101,12047501)the project for topnotch innovative talents of Gansu province。
文摘In this work,we study the doubly charmed dibaryon states with the qqqqcc(q=u,d,s)configuration.The mass spectra of doubly charmed dibaryon states are obtained systematically within the chromomagnetic interaction model.In addition to the mass spectrum analysis,we illustrate their two-body strong decay behaviours.Our results suggest that there may be narrow states or even stable states that cannot decay through the strong interaction.We hope that our results will provide valuable information for further experimental searches for doubly charmed dibaryon states.
