• [1]

    BES Collab. Nucl. Instr. Meth., A344(1994) 319–334 2 ZHU Yong–Sheng et al. HEP NP, 1989,13(7) :586–593(in Chinese)(朱永生等.高能物理与核物理,1989,13(7) :586–593)3 BES Collab. Phys. Rev. Lett., 1992,69:3021–30244 BES Collab. Phys. Lett., 1998,B429:188–1945 BES Collab. Phys. Rev. Lett., 1995, 74: 4599–46026 GU Jian–Hui et al. HEP NP,1996,20:(1) :26–31(in Chinese) (顾建辉等.高能物理与核物理,1996,20(1) :26–31)7 BES Collab. HEP NP,1996,20(2) :97–106(in Chinese) (BES合作组.高能物理与核物理,1996,20(2) :97–106)8 YUAN Chang–Zheng. Master thesis, Institute of High Energy Physics(1994) (苑长征,硕士学位论文,高能物理研究所,1994) 9 GUO Ya–Nan. Nucl. Instr. Meth,,1996,A379:349–35310 Harris F A. Recent φ(2S) and ηc Result from BES. Report at ICHEP 2002, Amsterdam, Holland, July 24–31, 2002