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Light Cone 2015

21–25 Sept 2015
Laboratori Nazionali di Frascati
Europe/Rome timezone

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Session

8.

23 Sept 2015, 09:00
Aula Bruno Touschek (Laboratori Nazionali di Frascati)

Aula Bruno Touschek

Laboratori Nazionali di Frascati

Conveners

8.

  • James Vary (Iowa State University)

Presentation materials

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  1. 70. Scattering Solutions of the Bethe-Salpeter equation in Minkowski and Euclidean spaces
    Dr Jaume Carbonell (CNRS/IPN Orsay)
    23/09/2015, 09:00
    Invited talk
    The solutions of the Bethe-Salpeter equation in Minkoswki space are mandatory for computing some physical quantities like elastic and transition form factors, scattering of-shell amplitudes etc. They are however plagued with the singularities of the free propagators, of the interaction kernel and of the amplitude itself making rather difficult its numerical computation. This difficulty...
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  2. 57. Electromagnetic properties of the nucleon in the covariant Faddeev approach
    Dr Gernot Eichmann (University of Giessen)
    23/09/2015, 09:30
    Invited talk
    The covariant three-body Faddeev approach and its application to nucleon and delta properties are briefly reviewed. I will discuss results for mass spectra as well as nucleon and delta elastic and transition form factors, together with the role of electromagnetic gauge invariance and vector-meson dominance. I will also talk about some recent work on Compton scattering, pion-cloud effects and...
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  3. 22. Inverting the Nakanishi weight function for a bound-state
    Prof. Tobias Frederico (Instituto Tecnologico de Aeronautica)
    23/09/2015, 10:00
    Invited talk
    We report our attempts in extracting the Nakanishi weight function for a S-wave bound-state using a model for the Bethe-Salpeter amplitude from a given form of the weight function. Both the Bethe-Salpeter amplitude in Euclidean space and the valence light-front wave function are written in terms of the Nakanishi integral representation, and through that we formulate an inhomogeneous integral...
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  4. 21. The renormalization group equations revisited in the light of finite field theories.
    Dr Jean-Francois MATHIOT (Laboratoire de Physique Corpusculaire)
    23/09/2015, 10:30
    Invited talk
    The analysis of physical observables in terms of energy/momentum scales necessitates to disantangle spurious scales originating from the divergence of ill-defined integrals from the physical scales inherent to the dynamics of a given system. The use of finite field theories is thus of particular interest in this separation. We shall investigate this question in the light of the recently...
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