Detection of muons and K/sub L//sup 0/ mesons from e/sup +/e/sup -/ collisions using the endcap RPC module in the Belle detector

The Belle experiment at the KEKB has collected beam collision data from June 1st through August 4th, 1999, integrated luminosity during this period is 25 pb/sup -1/, and the data contain approximately 10,000 e/sup +/e/sup -//spl rarr//spl mu//sup +//spl mu//sup $/events and 50,000 hadronic events. Using those events, we study the performance of endcap RPC modules in the Belle detector. The study shows that the endcap RPC modules perform quite well in detecting muons and K/sub L//sup 0/ mesons.