• [1]

    A. J. Buras et al., Nucl. Phys., B131 (1977), 308; B132 (1978),249.[2] J. G. Motfin et al., Phys. Lett., 107B(1981), 450.[3] I. Hinchliffe and C. H. Lewellyn Smith, Nucl. Phys., B128 (1977),93.[4] A. De Rujula, H. Georgi and H. D. Politzer, Ann. Phys., 103 (1977);315.[5] 彭宏安等, 高能物理与核物理, 5(1980), 600.[6] AIP Conference Proceedings No 68, edited by L. Durand and L. G. Pondrom (American Instituteof Physics, New York, 1981); Proceedings of the Twentieth international conternce on high Energy Physics, Madison, Wisconsin, 1980.[7] S. J. Brodsky, Phys. Lett., 93B (1980), 451.[8] YU L. Dokshitzer et al., Phys. Lett., 78B (1978), 290; T. Appelquist et al., Phys. Rev., D4(1971),2454.[9] S. D. Ellis and W. J. Stirling, Phys. Rev., D23 (1981), 214.[10] E. M. Riordan ct al., SLAC-PUB-1634 (1975); W. B. Afwood et al., Phys. Lett., 64B (1976), 479;A. Bodek et al., Phys. Rev., D23(1981), 1070.[11] R. Barbieri et al., Nucl. Phys., B117 (1976), 50.