• [1]

    S.Uhlig. et al., Nucl. Phys., B132(1978), 15.[2]R.E. Ansorge et al., Z. Phys. C-Particles and Fields; 37(1989), 191. G. J. Alner et al., Nucl. Phys B291(1987), 445. K. Alpgard et al., Phys. Lctt., 1238(1983), 361.[3]M.Althoff et al., Z. Phys. C-Particlcs and Fields, 29(1985), 347, M. Derrick et al., phys. res. D34(1986), 3304. W. Sraunschwig et al., Z. Phys. C-Pcrticles and Fields,45(1989),193[4]M.Arncodo et al., Nucl. Phys., B258(1985), 249.[5]A, Capella, J. Tran Thanh Van, Z. Phys. C-Panicles and Fields, 18(1983), 85.K. Fialkowski et al,Phys. Teat., 115B(1982), 425; J. Kuhn, Nucl. Phys., B140(1918), 179;S. Barshay, Z. Phys. C-Particles and Fields, 32(1986), 513.V. V . Lugovoiand and V. M. Chudako, Sov. J. Nucl. Phys., 50(1989), 490;F. W. Bopp et al., Z. Phys. C-Particlcs and Fields, 51(1991), 99.[6]P. Carruthers and C. C. Shih, Phys. Lett., 165B(1985), 209.Cai Xu et al., Phys.D33(1986),1287 M. Biyajima et al., Z. Phys. C-Particles and Fields, 44(1989), 199 M. Biyajima et al.,Phys. Rcv., D39(1989), 203[7]S. L. Lim et al., Z. Phys. C-Particles and Fields, 44(1989), 621.[8]王韶舜等,高能物理与核物理, 13(1989), 673,[9]王韶舜等,高能物理与核物理,I5(1991), 1057,[10]V. V. Avivazyan et al., Z. Phys. r. C-Particles arid Fields, 42(1989), 533 L. V. Braving et al., Sou. J. Nucl, Phys., 50(1989), 245.[11]T. T. Chou and C. N. Yang, Phys. Lett., 135B(1984), 175.[12]王韶舜等,高能物理与核物理,I6(1992)