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arXiv · 2605.03433

DD-pair production in the parton Reggeization approach taking into account single and double parton scattering scenarios

Lev Alimov·Vladimir Saleev
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Abstract

The paper presents the results of calculations of the cross sections for the production of $DD$-pairs at centre-of-mass energies $\sqrt{s}=7$ and $13$ TeV in the parton Reggeization approach. The contribution of both single and double parton scattering is taken into account. To describe the non-perturbative effects of $c$-quark hadronization into $D$-mesons, a fragmentation model with the Peterson fragmentation function is used. The parameter $\sigma_{eff}=11.5^{+0.6}_{-0.5}$ mb, which determines the contribution of the double parton scattering mechanism, is fixed on the basis of a comparison with the available LHCb collaboration experimental data on the $D$-meson pairs production at $\sqrt{s}=7$ TeV.

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Lev Alimov, Vladimir Saleev. 2026-05-05. DD-pair production in the parton Reggeization approach taking into account single and double parton scattering scenarios. https://arxiv.org/abs/2605.03433

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