Ultraviolet energy dependence of particle production sources in relativistic heavy-ion collisions
Abstract
The energy dependence of particle production sources in relativistic heavy-ion collisions is investigated from RHIC to LHC energies. Whereas charged-hadron production in the fragmentation sources follows a ln(sNN/s0) law, particle production in the mid-rapidity gluon-gluon source exhibits a much stronger dependence proportional to ln3(sNN/s0), and becomes dominant between RHIC and LHC energies. The production of particles with pseudorapidities beyond the beam rapidity is also discussed.
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