• [1]

    T. Kobayashi, Phys. Lctt., 180B(1986), 107; C. Q. Geng and R. E. Marshak,Phys. Rev., D35(1987), 2278.[2] H.Georgi,Nucl. Phys., B266 (1986),274;D.A. Kosower, Phys. Lett.169B (1986), 234.[3] H. Georpi, Phys. Lett., 151B (1985), 57.[4] D. Weingarten, Phys. Rev. Lett., 51(1983), 1830;S. Nussinov, ibid, 51(1983), 2081; E. Witten, ibid, 51 (1983), 2351; C. Vafa and E. Witten, Nucl. Phys., B234(1984),173.[5] S. Raby et al, Nucl. Phys., B169 (1980), 373;S. Dimopoulos et al; Nucl. Phys., B173(1980), 208,李小源,在大连物理会议上的报告(1986 ).[6] I. Bars, Nucl. Phys,B208(1982),77.[7] G't Hooft,in recent Development in Gauge Theories, ed. G.'t Hooft et at, (Plenum Press, 1980).[8] E.Raya,Phys, Report., 69, No. 3 (1981), 195[9] H.Georgi,Nucl. Phys., B156 (1979), 126.[10] H. Harari, Particles and Fields,2(1983), 201.[11] I. Bars. Proc. 23rd. lnt.conf.on High-Energy Physics, (1986) 433.