Suppression versus enhancement of heavy quarkonia in pA collisions

@article{Kopeliovich2017SuppressionVE,
  title={Suppression versus enhancement of heavy quarkonia in pA collisions},
  author={Boris Z. Kopeliovich and Ivan Schmidt and Marat Siddikov},
  journal={Physical Review C},
  year={2017},
  volume={95},
  pages={065203}
}
We describe production of heavy quarkonia in pA collisions within the dipole approach, assuming dominance of the perturbative color-singlet mechanism (CSM) in the pT -integrated cross section. Although accounting for a nonzero heavy Q-Q̄ separation is a higher twist correction, usually neglected, we found it to be the dominant source of nuclear effects, significantly exceeding the effects of leading twist gluon shadowing and energy loss. Moreover, this contribution turns out to be the most… 

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References

SHOWING 1-10 OF 90 REFERENCES

Heavy quarkonium production: Nontrivial transition from pA to AA collisions

Two novel QCD effects, double-color filtering and mutual boosting of the saturation scales in colliding nuclei, affect the transparency of the nuclei for quark dipoles in comparison with

Gluon shadowing in heavy flavor production off nuclei

Heavy-Quarkonium Production in High Energy Proton-Proton Collisions at RHIC

We update the study of the total {psi} and {Upsilon} production cross section in proton-proton collisions at RHIC energies using the QCD-based Color-Singlet (CS) Model, including next-to-leading

Nuclear effects in the Drell-Yan process at very high energies

We study Drell-Yan (DY) dilepton production in proton(deuterium)-nucleus and in nucleus-nucleus collisions within the light-cone color-dipole formalism. This approach is especially suitable for

Why heavy and light quarks radiate energy with similar rates

The dead-cone effect has been predicted to reduce the magnitude of energy loss and jet quenching for heavy flavors produced with large p{sub T} in heavy-ion collisions. On the contrary, data from the

Forward $J/\psi$ production in proton-nucleus collisions at high energy

Inclusive production of $J/\psi$ mesons, especially at forward rapidities, is an important probe of small-x gluons in protons and nuclei. In this paper we re-evaluate the production cross sections in

On relevance of triple-gluon fusion in J /ψ hadroproduction

A contribution to J /ψ hadroproduction is analyzed in which the meson production is mediated by three-gluon partonic state, with two gluons coming from the target and one gluon from the projectile.

Global analysis of nuclear parton distributions

We present a new global QCD analysis of nuclear parton distribution functions and their uncertainties. In addition to the most commonly analyzed data sets for the deep-inelastic scattering of charged
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