Single and pair 
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 production in the improved color evaporation model using the parton Reggeization approach

Chernyshev, A. A.; Saleev, V. A.

doi:10.1103/physrevd.106.114006

Cited by 5 publications

(1 citation statement)

References 57 publications

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“…The contribution of double parton scattering (DPS) was assessed in Refs. [22, 25−27], which is expected to be important, and the color evaporation model has also been used to interpret the production of a pair [28,29]. Because predictions for DPS and the color evaporation model are highly model-dependent, accurate calculation of the SPS contribution is required before one can extract the DPS contribution.…”

Section: Introductionmentioning

confidence: 99%

J/ψ pair hadroproduction at next-to-leading order in nonrelativistic-QCD at CMS*

Li-ping

2023

Chinese Phys. C

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We perform a complete study on the $J/\psi$ pair hadroproduction atnext-to-leading order (NLO) in the nonrelativstic-QCD (NRQCD)framework with the pair of $c\bar{c}$ either in ${}^{3}S_1^{[1]}$ or${}^{1}S_0^{[8]}$ fock state. It is found that the ${}^{1}S_0^{[8]}$channel contribution at NLO is essential. Our results indicate thatfor the CMS, the NRQCD predictions can not describe the experimentaldata at all, and the total cross section predicted by NRQCD issmaller than the experimental data by an order of magnitude. So newmechanisms are needed to understand the CMS data for $J/\psi$ pairproduction. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

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Section: Introductionmentioning

confidence: 99%

J/ψ pair hadroproduction at next-to-leading order in nonrelativistic-QCD at CMS*

Li-ping

2023

Chinese Phys. C

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J/ψ production at NLO with a scale-dependent color-evaporation model

Guiot,

Radic,

Schmidt

et al. 2023

Phys. Rev. D

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Associated production of heavy quarkonia and D mesons in the improved color evaporation model with KaTie

Chernyshev,

Saleev

2024

Phys. Rev. D

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In this 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 s=7, 8 TeV and we present theoretical predictions for the energy s=13 TeV. Published by the American Physical Society 2024

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Single and pair J/ψ production in the improved color evaporation model using the parton Reggeization approach

Cited by 5 publications

References 57 publications

J/ψ pair hadroproduction at next-to-leading order in nonrelativistic-QCD at CMS*

J/ψ pair hadroproduction at next-to-leading order in nonrelativistic-QCD at CMS*

J/ψ production at NLO with a scale-dependent color-evaporation model

Associated production of heavy quarkonia and D mesons in the improved color evaporation model with KaTie

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