Nuclear size and rapidity dependence of the saturation scale from QCD evolution and experimental data

Abstract

The solutions of the Balitsky-Kovchegov evolution equations are studied numerically and compared with known analytical estimations. The rapidity and nuclear size dependences of the saturation scale are obtained for the cases of fixed and running coupling constant. These same dependences are studied in experimental data, on lepton-nucleus, deuteron-nucleus and nucleus-nucleus collisions, through geometric scaling and compared with the theoretical calculations.

8 pages, 8 figures. Contribution based on talks given by J. G. Milhano and C. A. Salgado to the proceedings of ``Hard Probes 2004'', Ericeira (Portugal), November 4-10, 2004

References in corpus (5)

• Relating high-energy lepton-hadron, proton-nucleus and nucleus-nucleus collisions through geometric scaling
• Numerical analysis of the Balitsky-Kovchegov equation with running coupling: dependence of the saturation scale on nuclear size and rapidity
• Unintegrated gluon distribution from modified BK equation
• Higher Order Effects in Non Linear Evolution from a Veto in Rapidities
• The spread of the gluon k_t-distribution and the determination of the saturation scale at hadron colliders in resummed NLL BFKL

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