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Cold nuclear matter effects on J/psi production: intrinsic and extrinsic transverse momentum effects

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arxiv 0809.4684 v2 pith:A4OM6SGH submitted 2008-09-26 hep-ph hep-exnucl-exnucl-th

E. G. Ferreiro , F. Fleuret , J.P. Lansberg , A. Rakotozafindrabe This is my paper · ORCID
classification hep-phhep-exnucl-exnucl-th
keywords effectsnuclearproductionmattercoldgluonsinitialintrinsic
verification ladder T0 review T1 audit T2 compute T3 formal
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Cold nuclear matter effects on J/psi production in proton-nucleus and nucleus-nucleus collisions are evaluated taking into account the specific J/psi production kinematics at the partonic level, the shadowing of the initial parton distributions and the absorption in the nuclear matter. We consider two different parton processes for the c-cbar pair production: one with collinear gluons and a recoiling gluon in the final state and the other with initial gluons carrying intrinsic transverse momentum. Our results are compared to RHIC observables. The smaller values of the nuclear modification factor R_AA in the forward rapidity region (with respect to the mid rapidity region) are partially explained, therefore potentially reducing the need for recombination effects.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Automated NLO calculations for asymmetric hadron-hadron collisions in MadGraph5_aMC@NLO

    hep-ph 2025-01 accept novelty 6.0 of 10

    A public extension of MadGraph5_aMC@NLO now computes automated NLO QCD cross sections for asymmetric hadron-hadron collisions, validated against MCFM and JAM.

  2. Prospects for early heavy-quark measurements at the EIC

    hep-ph 2026-08 conditional novelty 4.0 of 10

    A leading-order MadGraph study maps the expected heavy-quark and double-charm yields and nuclear modification ratios for early EIC beam configurations.

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