LANCET HAEMATOLOGY, cilt.10, sa.2, 2023 (SCI-Expanded, Scopus)
An estimate is presented of the production cross section of $B_c$ mesons between threshold and LHC energies using lowest-order perturbation theory and non-relativistic bound state approximation. It is shown that the ratio of the production cross sections for $B_c$ mesons and for $b$ quarks varies strongly with energy.