• [1]

    E. Aslanides et al., Phys, Lett., 68B(1977), 221; G.Igo, Procedings of the Sixth International Conference on High Energy Physics and Nuclear Structure (1975),63.[2] R. Klem et al., Phys. Rev. Lett., 38 (1977), 1272.[3] 李扬国、张禹顺、林春灿,高能物理与核物理,2 (1975). 526.[4] Y. Abgrall, J. Labrsouque and B. Morand, Nucl. Phys., A271 (1976), 477[5] J. P. Auger et al., Nucl. Phys., A262 (1976), 372.[6] S. J. Wallace et al., Phys. Rev. Lett., 38 (1977), 1269.[7] H.Palevsky et al., Phys. Rev. Lett., 18 (1967), 1200.[8] 李扬国、刘宪辉,物理学报,26 (1977), 180.