Nucleus-nucleus cross-sections and long-range correlations with a local supercritical pomeron

Details Nucleus-nucleus cross-sections and long-range correlations with a local supercritical pomeron Nucleus-nucleus cross-sections and long-range correlations with a local supercritical pomeron

2007-11-21

arxiv.org/abs/0711.3268v1

Nucl.Phys.A806:230-244,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 10 figures

Scientific paper

10.1016/j.nuclphysa.2008.02.301

Nucleus-nucleus scattering is studied in the local Reggeon Field Theory in the quasi-classical approximation with non-eikonal boundary conditions corresponding to the Glauber picture at low energies. Comparison with the commonly used eikonal boundary conditions shows that the new conditions make both the action and nucleus-nucleus total cross-sections lower by $3\div 5$ %. They also substantially change the behaviour of the solutions of the equations of motion at low energies. Using expressions for the double inclusive cross-sections derived earlier in the Reggeon Field Theory \cite{CM} long-range rapidity correlations are calculated for the RHIC and LHC energies.

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