Comments on "Study of J/psi production in jets"
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✦ hep-ph
hep-ex
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productionfragmentationfunctionjetsaccountanalyzedcasescomments
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Recent LHCb measurements of the $J/\psi$ meson production in jets is analyzed using fragmentation jet function formalism. It is shown that disagreement with theoretical predictions for distribution over the fraction of $J/\psi$ transverse momentum $z(J/\psi)$ in the cases of prompt production can be explained if one takes into account evolution of the fragmentation function and contributions from double parton scattering mechanism.
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