Double D-meson production in proton-proton and proton-lead collisions at the LHC

We consider the simultaneous production of two heavy-flavoured hadrons – particularly D mesons – at the LHC. We base our calculations on collinearly factorized QCD at next-to-leading order, using the contemporary parton distribution functions and D-meson fragmentation functions. The contributions of...

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Bibliographic Details
Published inPhysics letters. B Vol. 800; p. 135084
Main Authors Helenius, Ilkka, Paukkunen, Hannu
Format Journal Article
LanguageEnglish
Published Elsevier B.V 10.01.2020
Elsevier
Subjects
Double-parton scattering
Open heavy-flavour production
Perturbative QCD
Proton-nucleus scattering
Open heavy-flavour production
Proton-nucleus scattering
Double-parton scattering
Perturbative QCD
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Summary:We consider the simultaneous production of two heavy-flavoured hadrons – particularly D mesons – at the LHC. We base our calculations on collinearly factorized QCD at next-to-leading order, using the contemporary parton distribution functions and D-meson fragmentation functions. The contributions of double-parton scatterings are included in the approximation of independent partonic interactions. Our framework benchmarks well with the available proton-proton data from the LHCb collaboration giving us confidence to make predictions for proton-lead collisions. Our results indicate that the double D-meson production in proton-lead collisions should be measurable at the LHCb kinematics with the already collected Run-II data, and should provide evidence for double-parton scattering at perturbative scales with a nuclear target.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2019.135084