Associated production of heavy quarkonium and $D-$meson in the improved color evaporation model with KaTie

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Autori principali: Chernyshev, Alexey, Saleev, Vladimir
Natura: Preprint
Pubblicazione: 2023
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author Chernyshev, Alexey
Saleev, Vladimir
author_facet Chernyshev, Alexey
Saleev, Vladimir
contents In the article, we study associated production of prompt $J/ψ(Υ)$ and $D-$mesons in the improved color evaporation model using the high-energy factorization approach as it is realized in the Monte-Carlo event generator KaTie. The modified Kimber-Martin-Ryskin-Watt model for unintegrated parton distribution functions is used. We predict cross sections for associated $J/ψ(Υ)$ and $D-$meson hadroproduction via the single and double parton scattering mechanisms using the set of model parameters which has been fixed early for description of prompt single and pair heavy quarkonium production at the LHC energies. We found the results of calculations agree with the LHCb Collaboration data at the energies $\sqrt{s} = 7,8$ TeV and we present theoretical predictions for the energy $\sqrt{s} = 13$ TeV .
format Preprint
id arxiv_https___arxiv_org_abs_2312_13046
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Associated production of heavy quarkonium and $D-$meson in the improved color evaporation model with KaTie
Chernyshev, Alexey
Saleev, Vladimir
High Energy Physics - Phenomenology
In the article, we study associated production of prompt $J/ψ(Υ)$ and $D-$mesons in the improved color evaporation model using the high-energy factorization approach as it is realized in the Monte-Carlo event generator KaTie. The modified Kimber-Martin-Ryskin-Watt model for unintegrated parton distribution functions is used. We predict cross sections for associated $J/ψ(Υ)$ and $D-$meson hadroproduction via the single and double parton scattering mechanisms using the set of model parameters which has been fixed early for description of prompt single and pair heavy quarkonium production at the LHC energies. We found the results of calculations agree with the LHCb Collaboration data at the energies $\sqrt{s} = 7,8$ TeV and we present theoretical predictions for the energy $\sqrt{s} = 13$ TeV .
title Associated production of heavy quarkonium and $D-$meson in the improved color evaporation model with KaTie
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2312.13046