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The generalised relativistic Lindhard functions

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Abstract.

We present here analytic expressions for the generalised Lindhard function, also referred to as Fermi gas polarisation propagator, in a relativistic kinematic framework and in the presence of various resonances and vertices. Particular attention is payed to its real part, since it gives rise to substantial difficulties in the definition of the currents entering the dynamics.

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Authors and Affiliations

  1. Dipartimento di Fisica Teorica, Università di Torino, Istituto Nazionale di Fisica Nucleare, Sezione di Torino, Torino, Italy

    M. B. Barbaro

  2. Dipartimento di Fisica, Università di Genova, Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Genova, Italy

    R. Cenni & M. R. Quaglia

Authors
  1. M. B. Barbaro
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  2. R. Cenni
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  3. M. R. Quaglia
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Correspondence to M. B. Barbaro.

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A. Molinari

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Barbaro, M.B., Cenni, R. & Quaglia, M.R. The generalised relativistic Lindhard functions. Eur. Phys. J. A 25, 299–318 (2005). https://doi.org/10.1140/epja/i2005-10105-4

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  • DOI: https://doi.org/10.1140/epja/i2005-10105-4

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