电中性的K(892)电磁质量可以大于带电荷的K(892). 这是异乎寻常的现象, 将被称为K-电磁质量反常. 评述了这个课题, 并指出K的质量劈裂可以在北京谱仪(BES)上作精密测量.
Electromagnetic masses of neutral K*(892) may be larger than one of charged K*(892). It is unusual and is called K*-EM-mass anomaly. We review the studies on this issue, and point out that K*-mass splitting can be measured in BES accurately.
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