Four heavy quark and bound state production in the e(sup +)e(sup -)(yields) Q + Q-bar(sup ')+ Q(sup ')+ Q-bar and e(sup +)e(sup -) (yields) (QQ-bar(sup ')) + Q(sup ') + Q-bar processes in Z(sup 0)-boson pole

摘要

In the frame of the QCD perturbation theory and nonrelativistic model of heavy quarkonium the cross-sections of four heavy quark production in e(sup +)e(sup -) annihilation, as well as the cross-sections of the associative production of the 1S- and 2S-wave (QQ-bar(sup '))-mesons in the e(sup +)e(sup -) (yields) (QQ-bar(sup ')) + Q(sup ')+ Q-bar process are calculated. Basing on the assumption of the quark-hadron duality the number of the (Lambda)(sub bc)-hyperon expected for LEP experiments is estimated. The fragmentation functions of b-quark into B(sub c)(B(sub c)(sup *))-meson, c- and b-quarks into (eta)(sub c)((psi))- and (eta)(sub b)((Upsilon))-mesons, respectively, are obtained. 23 refs., 11 figs., 4 tabs. (Atomindex citation 26:027188)