PHOTONIC PRODUCTION OF P-WAVE STATES OF B-C MESONS

Numerical calculations for the production of P-wave levels of B-c quar konium in gamma gamma collisions are performed in the leading O(alpha( s)(2) alpha(em)(2)) order of perturbation theory. The total cross-sect ion of P-wave state production is about 10% of that for the S-wave lev els. The contribution of fragmentation component (6 + 6 diagrams) is l ow, and the basic contribution is determined by the recombination mech anism (8 Feynman diagrams). The gauge invariant term of the (b) over b ar --> B-c fragmentation (6 diagrams) quite accurately reproduces the result of the fragmentation model, whereas there is a strong deviation of the c --> B-c fragmentation term from the predictions of the fragm entation model.