Nuclear size and rapidity dependence of the saturation scale from QCD evolution and experimental data |
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| Authors: | J. L. Albacete N. Armesto J. Guilherme Milhano C. A. Salgado U. A. Wiedemann |
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| Affiliation: | (1) Departamento de Física, Universidad de Córdoba, 14071 Córdoba, Spain;(2) Department of Physics, CERN, Theory Division, 1211 Genéve, Switzerland;(3) Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain;(4) Instituto Superior Técnico (IST), CENTRA, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal |
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| 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.Arrival of the final proofs: 18 March 2005PACS: 12.38.Bx - 13.60.Hb - 12.38.CyJoint contribution to the proceedings of the Hard Probes 2004 Conference based on the oral presentations by J.G. Milhano and C.A. Salgado |
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