• [1]

    BAI J Z et al. Nucl. Instr. and Meth. in Phys. Res. ,1994,A344:319[2] I71N(: HuiLiang et al. High Energy Physics and Nuclear Physics (in Chinese)，1992,16:765(丁慧良等.高能物理与核物理，1992,16:769)[3] BES Collaboration. High Energy Physiac and Nuclear Physics (in Chinese),1997,21:97(BES合作组.高能物理与核物理,1997,21:97)[4] QI XiangRong et al. High Energy Physics and Nuclear Physicq (in C:hinese),1999,23:1(祁向荣等.高能物理与核物理，1999,23:1)[5] Berends F A et al. Yhys. Lett. ,1987,63B:432[6] Berends F A et al. Nucl. Phys.，1981.B186:22[7] YU ZhongQiang et al. High Energy Phys. and Nucl. Phys. ( in Chinese) ,1995 ,19:1062(郁忠强等高能物理与核物理，1995,19:1062)[8] HUANG CruangShtm,The 8th BES Annual Meeting. June 1999. Beijing