Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-02-20
Phys.Rev.D54:1891-1895,1996
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX, 7 pages and 6 figures available upon request
Scientific paper
10.1103/PhysRevD.54.1891
Based on photon structure function formalism we have calculated $B_c(B_c^{*})$ meson production cross section in $\gamma\gamma$ collisions via partonic subprocess $c\gamma\to B_c(B_c^{*}) b$. It was shown that this approach gives the same results for $B_c^*(B_c)$ meson cross sections as the direct leading order QCD calculation of the subprocess $\gamma\gamma\to B_c(B_c^{*})b\bar c$ at small energy. Howere, opposite to the direct QCD calculation we have obtained the increase of the $B_c(B_c^{*})$ meson cross section at large energies. We have found also additional contribution to the $B_c$ meson production via the nonperturbative fluctuations $\gamma\leftrightarrow J/\psi$.
Martynenko A. P.
Saleev V. A.
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