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Introduction to the Spectator Approach

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Czechoslovak Journal of Physics Aims and scope

Abstract

These lectures are intended as an introduction to the so-called “spectator” or “Gross” formalism. It is a covariant framework based on relativistic quantum field theory, which was developed in particular, although not exclusively, for applications in few-hadron systems. After a more general introduction, a first part develops some basic ideas within a scalar field theory. Then, a brief overview over relativistic two-body equations is given. The final part is devoted to the Gross equation in the two- and three-nucleon problem and presents some recent results.

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Authors and Affiliations

  1. Departamento de Física, Universidade de Évora, 7000, Évora, Portugal and

    A. Stadler

  2. Centro de Física Nuclear da Universidade de Lisbon, 1649–003, Lisboa, Portugal

    A. Stadler

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  1. A. Stadler
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Stadler, A. Introduction to the Spectator Approach. Czechoslovak Journal of Physics 49, 1347–1382 (1999). https://doi.org/10.1023/A:1022824328171

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