Login

Non-Perturbative QFT in Euclidean and Minkowski

10–12 Sept 2019
E10.B
Europe/Lisbon timezone

Contact

Session

Propagators and Vertices

11 Sept 2019, 09:00
E10.B

E10.B

Department of Physics University of Coimbra Portugal

Presentation materials

There are no materials yet.

  1. 12. Nakanishi representation for propagators
    Vladimir Sauli
    11/09/2019, 09:00

    The definition and the way to extract Nakanishi representation for propagators and triple vertices in Gauge Theories will be presented during the talk. How they can be usefull for calculation of meson electromagnetic form factors in Minkowski space will be ilustrated in cases of the VHP and the pion TFF.

    Go to contribution page
  2. 16. Spectral functions from the Functional Renormalization Group
    Nicolas Wink
    11/09/2019, 09:50

    We review some general aspects of calculations in Minkowski space-time with Functional Methods with a focus on the Functional Renormalization Group.
    In particular the implications of having an momentum dependent regulator present are discussed and results for a scalar theory are presented.
    Insights from calculations are used to construct improved methods for spectral reconstructions,...

    Go to contribution page
  3. 17. Propagators and vertices from lattice QCD
    Jon-Ivar Skullerud (National University of Ireland Maynooth)
    11/09/2019, 11:00

    I will present an overview of results for gluon, ghost and quark propagators and veretices from lattice QCD, and discuss what this may tell us about their analytic structure.

    Go to contribution page
  4. 18. Continuum Limit of Gluon and Ghost Propagators in Minimal Landau Gauge
    Attilio Cucchieri, Tereza Mendes
    11/09/2019, 13:30

    We study the continuum limit of SU(2) Landau-gauge gluon and ghost propagators, obtained from numerical simulations performed on lattice volumes of up to $192^4$, in the scaling region.

    Go to contribution page
  5. 4. The Complex Gluon, Ghost and Higgs
    David Dudal
    11/09/2019, 14:20

    We discuss how to extract from lattice data information about the (unphysical as gauge variant) spectral representation of gluons and ghosts using a regularized inversion strategy, compatible with the standard Källen-Lehmann spectral integral, whilst allowing generalizations thereof, namely with non-positive density and/or complex conjugate poles.

    We also discuss how to introduce gauge...

    Go to contribution page
Building timetable...