• [1]

    A. Capella, et al., Phys. Lett., B81(1979), 68.[2] R. D. Field and R. P. Feynman, Nucl. Phys., B136(1978), 1.[3] T. Sjostrand, LU TP 79-8 MAY, 1979.[4] S. C. Cooper LBI-Revort LBL-11322 (1980).[5] Pong Huong-an Zhou Guo-xing.Proc of the 1980 Guangzhou Conf on theoretical particle physits .p591.[6] R. C. Hwa, Phys. Rev., D22(1980), 759.[7] M. Zravek, Phys. Rev., D19 (1979), 800.[8] D. Hanna et al., Phys. Rev. Lett., Vol. 46 (1981), 398.[9] S. J. Barish et al., Phys. Rev., D12(1975), 1260.[10] Xie Qu-bing,of the 1980 Guan Conf. on Theoretical Particle Physics, p. 780.[11] V. V. Anisovich, et al., Nucl. Phys., B55(1973), 455.[12] W. Thome, Nucl. Phy, B129(1977), 365.[13] H. D. Wahl, Pros. 19th Int Conf. Igh-Energy Phys. Tokyo, 1978, P72.[14] Liu Hanrhao, Yang Guo-sben, Proc, of the 1980 Conf. on theoretical particle phy-sits, p780.[15] Chen Chi-jiang, Lu Jing-fa, `The carged particle multiplicity in proton-antiproton annihilation' Commu. Theore. Phys.〔1986).[16] E. Albini, Nuovo. Cimento, Vol 32(1976)101.[17] M Antinucci et al.,Lett Nuoao Cimento, Vol. 64(1973), 121.