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25 April 2024 |
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Article overview
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Coherent J/psi production - a novel feature at LHC? | | I.C. Arsene
; L. Bravina
; A.B. Kaidalov
; K. Tywoniuk
; E. Zabrodin
; | | Date: |
29 Nov 2007 | | Abstract: | Energy dependence of heavy quarkonia production in hadron-nucleus collisions
is studied in the framework of the Glauber-Gribov theory. We emphasize a change
in the space-time picture of heavy-quark state production on nuclei with
energy. Longitudinally ordered scattering of a heavy-quark system takes place
at low energies, while with increasing energy it transforms to a coherent
scattering of projectile partons on the nuclear target. The characteristic
energy scale for this transition depends on masses and rapidities of produced
particles. For J/psi, produced in the central rapidity region, the transition
happens at RHIC energies. The parameter-free calculation of J/psi in dAu
collisions is in good agreement with recent RHIC data. We use distributions of
gluons in nuclei to predict suppression of heavy quarkonia at LHC. | | Source: | arXiv, 0711.4672 | | Services: | Forum | Review | PDF | Favorites | |
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