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Hadronic production of S- and P-wave states of (b-bar c)-quarkonium

A. V. Berezhnoy·V. V. Kiselev·A. K. Likhoded
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Abstract

In the leading $O(α_s^4)$ order of the perturbative QCD, the hadronic production cross-sections of $S$- and $P$-wave states of $B_c$ meson are calculated. The results for the $S$-wave levels are compared with the values given in other papers as well as in the model of the $b$ quark fragmenatation into $B_c$. In the given order, the cross-sections of the hadronic production of the $P$-wave states are calculated for the first time. Their contribution into the $B_c$ meson production is less than 10\%. There is a strong difference between the predictions of the fragmentation model and the exact perturbative calculations. These difeerences are discussed in details for the differential distributions over various kinematical quantities.

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A. V. Berezhnoy, V. V. Kiselev, A. K. Likhoded. 1996-02-20. Hadronic production of S- and P-wave states of (b-bar c)-quarkonium. https://doi.org/10.1007/s002180050151

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