2009, Vol.12, No.4, pp.459-465
Experimental data on inclusive spectra of charged hadrons and pions
produced in heavy ion collisions at RHIC are analyzed in the
framework of z-scaling. Self-similarity is argued to be a
characteristic feature of hadron production at high energies. The
property includes structure of the colliding objects, interaction of
their constituents, and character of the fragmentation process.
A proposed microscopic scenario of nucleus interactions allows us to
estimate the energy loss of particles in the final state as a function
of the collision energy, transverse momentum, and centrality. The
developed approach can be exploited to search for signatures of
phase transition of nuclear matter produced in heavy ion collisions
at high energies.
Key words:
nucleus collisions, high energy, multiplicity density,
energy loss, scaling
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