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A simple model for the nuclear unintegrated gluon distribution

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Abstract

The solution of non-linear evolution equations for dense nuclear gluon density has been suggested as one of the relevant mechanisms of pA and AA collisions at collider energies. Here we study a simple parameterization for the unintegrated gluon distribution using the knowledge of asymptotic solutions of the Balitsky–Kovchegov equation, describing high-energy QCD in the presence of saturation effects. A satisfactory description of nuclear shadowing at small x is obtained and it allows us to understand the qualitative behavior shown by the data.

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Authors and Affiliations

  1. Conjunto Agrotécnico Visconde da Graça, CAVG, Universidade Federal de Pelotas, Caixa Postal 460, 96060-290, Pelotas, RS, Brazil

    M. A. Betemps

  2. Centro de Ciências Exatas e Tecnológicas, Universidade Federal do Pampa, Campus de Bagé, Rua Carlos Barbosa, 96400-970, Bagé, RS, Brazil

    M. V. T. Machado

Authors
  1. M. A. Betemps
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  2. M. V. T. Machado
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Correspondence to M. V. T. Machado.

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Betemps, M.A., Machado, M.V.T. A simple model for the nuclear unintegrated gluon distribution. Eur. Phys. J. C 65, 427–431 (2010). https://doi.org/10.1140/epjc/s10052-009-1212-y

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  • DOI: https://doi.org/10.1140/epjc/s10052-009-1212-y

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