Photonic production of B_c-mesons

Details Photonic production of B_c-mesons Photonic production of B_c-mesons

1994-08-15

arxiv.org/abs/hep-ph/9408287v1

Phys.Lett. B342 (1995) 351-355

Physics

High Energy Physics

High Energy Physics - Phenomenology

Preprint IHEP 94-82

Scientific paper

10.1016/0370-2693(94)01359-K

The cross section of the $\gamma \gamma \rightarrow B_c(B_c^*) \bar b c $ process is calculated. It is shown that near threshold the pseudoscalar state production is much suppressed with respect to the vector one. At large energies their ratio becaims $\sigma(B_c^*)/sigma(B_c)\sim 4$. The process of heavy quark recombination dominates in the production of $B_c(B_c^*)$ states. The fragmentation process $b\to B_c$ comes to play at high $p_t$ values only, while its contribution will remain nondominant.

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