-
[1]
J.M.Gerard, Y. Okamoto and R. E. Marshak, Phys Lett，169B(1986), 386; T. Kobayashi, Phys. Lett 180B(1986), 107.[2] S.Dimopoulos, S. Rabv and L. Susskind, Nucl. Phys., 173B(1980), 208.[3] S .Raby, S.Dimopoulos and L. Susskind, Nucl. Phys., 1698(1980), 373.[4] D .Gonzales, Phys.Lett，129B(1983), 213.[5] 张新民，薛晓舟，高能物理和核物理，10(1986), 271.[6] F. Bordi, R. Casalbuoni, D. Dominici and R. Glito, Phyr. Lett., 115B(1982), 45.[7] T. Kobayashi, UTHEP-159.[8] J. L. Goity, R. D. Peccei and D. Zeppenfeld, Nucl. Phyr., 262B(1985), 95.