Du, DS (reprint author), Acad Sinica, Inst High Energy Phys, POB 9184, Beijing 100039, Peoples R China.
We present a new mechanism for B+/- --> nu'K+/-, and analyze it strictly within perturbative QCD. We find that such a new mechanism may dominate non-leptonic B-decays to light mesons. Within a reasonable parameter space, our prediction is in good agreement with the recent CLEO data on B+/- --> nu'K+/-. We conclude that there is no room for an abnormally large b --> sg vertex from physics beyond the Standard Model. (C) 1998 Elsevier Science B.V. All rights reserved.