$K^{\ast }(892)$ Electromagnetic Mass Anomaly

Abstract

Electromagnetic masses of neutral $K^{\ast }(892)$ may be larger than one of charged $K^{\ast }(892)$. It is unusual and is called $K^{\ast }$-EM-mass anomaly. We review the studies on this issue, and point out that $K^{\ast }$-mass splitting can be measured in BES accurately.

tex file, 4 pages, no figures