Some Features of the Hadronic $B_c^{(*)}$-meson Production at Large $p_T$

Details Some Features of the Hadronic $B_c^{(*)}$-meson Production at Large $p_T$ Some Features of the Hadronic $B_c^{(*)}$-meson Production at Large $p_T$

1995-04-14

arxiv.org/abs/hep-ph/9504302v2

Phys.Atom.Nucl. 59 (1996) 709-713; Yad.Fiz. 59N4 (1996) 742-746

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, REVTEX file, 5 figures (uuencoded compressed tar-file)

Scientific paper

Calculations of the hadronic $B^{(*)}_c$-mesons production performed in the framework of the perturbative QCD taking into account $O(\alpha_s^4)$ Feynmann diagrams are presented. A comparison of the exact calculations with those based on the fragmentation model of $\bar b\rightarrow B^{(*)}_c+X$ shows the large discrepancy between them. The exact calculations of the $B^{(*)}_c$-mesons production cross-sections as the function of $p_T$ at the energy of the FNAL Tevatron ($\sqrt{s}=1.8$ TeV) are given. The predicted ratio of the vector to the pseudoscalar state cross-sections is about $R\sim 3$ instead of $R\sim 1.4$ for the fragmentation model.

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