Photonuclear Reactions at Intermediate Energies

强相互作用粒子，即强子，其结构目前只被定性地理解。最近一个奇异介子的发现表明，新的光谱研究可能会揭示以前未知的夸克胶子动力学的细节。这样的状态不能在强子的简单夸克模型中容纳。布鲁克海文国家实验室正在进行实验，以测量奇异介子的多粒子衰变。未来的光子束实验将在杰斐逊实验室进行。

Strongly interacting particles, hadrons, have structure which is only qualitatively understood at present. The recent discovery of an exotic meson suggests that new spectroscopic studies may reveal previously unknown details of quark0gluon dynamics. Such states cannot be accommodated within the simple quark model of hadrons. Experiments are underway at Brookhaven National Laboratory to measure multi- particle decays of exotic mesons. Future experiments with photon beams will be carried out at Jefferson Laboratory.