Induced Fission-Like Process of Hadronic Molecular States

何军; 陈殿勇; 刘占伟; 刘翔

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Induced Fission-Like Process of Hadronic Molecular States

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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.

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《中国物理快报：英文版》 |2022年第9期|6-9|共4页
作者
何军; 陈殿勇; 刘占伟; 刘翔;
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作者单位

School of Physics;

Northwest University;

Xi’an 710127;

China;

Optical Sciences Group;

Department of Fundamental and Theoretical Physics;

Research School of Physics;

The Australian National University;

Canberra ACT 2600;

Australia;

Shaanxi Key Laboratory for Theoretical Physics Frontiers;

Xi’an 710127;

China;

NSFC-SPTP Peng Huanwu Center for Fundamental Theory;

Xi’an 710127;

China;

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原文格式 PDF
正文语种 chi
中图分类裂变;
关键词
meson; momentum; beam;

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Induced Fission-Like Process of Hadronic Molecular States

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