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arXiv · hep-ph/0610313

J/psi suppression and the nuclear absorption decrease with increasing energy

A. Capella·E. G. Ferreiro
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Abstract

In the field theoretical Glauber-Gribov framework in the eikonal approximation, we show that, in hadron-nucleus collisions in the high-energy limit and under especific conditions, the rescattering contributions to the J/psi production cross-section vanish, leading to an A^1 dependence on the atomic number A -- except for nuclear effects in the nucleus structure function, the so-called shadowing. We show that the RHIC data on $J/ψ$ production in d-Au collisions can be described with nuclear shadowing alone (sigma_{abs} = 0). The corresponding results for Au-Au collisions are also presented and compared with available data.

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A. Capella, E. G. Ferreiro. 2008-01-18. J/psi suppression and the nuclear absorption decrease with increasing energy. https://doi.org/10.1103/physrevc.76.064906

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