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The generalised relativistic Lindhard functions

  • M. B. BarbaroEmail author
  • R. Cenni
  • M. R. Quaglia
Original Article

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.

PACS.

21.60.-n Nuclear structure models and methods 21.30.Fe Forces in hadronic systems and effective interactions 24.10.Cn Many-body theory 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  1. 1.Dipartimento di Fisica TeoricaUniversità di Torino, Istituto Nazionale di Fisica Nucleare, Sezione di TorinoTorinoItaly
  2. 2.Dipartimento di FisicaUniversità di Genova, Istituto Nazionale di Fisica Nucleare, Sezione di GenovaGenovaItaly

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