Hadroproduction of heavy quarkonia at the LHCстатья
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Дата последнего поиска статьи во внешних источниках: 26 октября 2015 г.
Аннотация:The production of heavy quarkonia at the LHC is considered. It is shown that, in the case of the inclusive production of χcJ P-wave charmonia, existing experimental data can be described upon taking into account next-to-leading corrections, a dominant contribution coming from color-singlet states. For the case of Bc -meson production, it is shown that, at experimentally accessible values of the transverse momentum, power-law corrections to the cross section make a significant contribution, with the result that the cross-section ratio σ(Bc )/σ(B) develops a pT dependence not observed in the fragmentation regime. The case of double vector-charmonium production is also considered.