Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-03-16
Phys.Rev.C58:389-425,1998
Physics
High Energy Physics
High Energy Physics - Phenomenology
54 pages, 11 Postscript figures, uses RevTeX
Scientific paper
10.1103/PhysRevC.58.389
We study the dynamics of quantum fluctuations which take place at the earliest stage of high-energy processes and the conditions under which the data from e-p deep-inelastic scattering may serve as an input for computing the initial data for heavy-ion collisions at high energies. Our method is essentially based on the space-time picture of these seemingly different phenomena. We prove that the ultra-violet renormalization of the virtual loops does not bring any scale into the problem. The scale appears only in connection with the collinear cut-off in the evolution equations and is defined by the physical properties of the final state. In heavy-ion collisions the basic screening effect is due to the mass of the collective modes (plasmons) in the dense non-equilibrium quark-gluon system, which is estimated. We avoid the standard parton phenomenology and suggest a dedicated class of evolution equations which describe the dynamics of quantum fluctuations in heavy-ion collisions.
Makhlin Alexander
Surdutovich Eugene
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