• [1]

    . Gerasimov S. Yaz., 1965, 2: 598; Drell S D, Hearn A C.Phys. Rev. Lett., 1966, 16: 9082. Fermi E. Phys. Rev., 1940, 57: 4583. Alcorn J et al(JLab Collaboration). NIM, 2004, A522: 2944. Iodice M. NIM, 1998, A411: 2235. L#220; Hai-Jiang, YAN Xin-Hu, YE Yun-Xiu et al. HEP NP, 2007, 31(5): 492(in Chinese)(吕海江,闫新虎,叶云秀等.高能物理与核物理,2007, 31(5):492)6. L#220; Hai-Jiang, JIANG Yi, YE Yun-Xiu et al. HEP NP,2007, 31(1): 84-87(in Chinese)( 吕海江,蒋一,叶云秀等.高能物理与核物理,2007, 31(1):84-87)