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14-18 May 2018
Jefferson Lab - CEBAF Center
US/Eastern timezone

Pion Model inspired by Lattice QCD

15 May 2018, 14:40
20m
Auditorium (Jefferson Lab - CEBAF Center)

Auditorium

Jefferson Lab - CEBAF Center

Speaker

Prof. Tobias Frederico (Instituto Tecnologico de Aeronautica)

Description

We study a pion Bethe-Salpeter (BS) amplitude model in Minkowski space inspired by Lattice QCD results for the quark self-energy for space like momentum. The model is based on the assumption of the Godstone boson nature of the pion and the pseudoscalar BS vertex is chosen to match the scalar part of the self-energy. The model allows a Nakanishi representation of the BS ampliude and produce reasonable results for the form-factor and decay constant. In addition it is discussed how the model can be used to study, PDFs, TMDs and the elementary fragmentation function. Work in collaboration with: Clayton de Mello, João Pacheco BC de Melo, Wayne de Paula and Rômulo Moreira Moita.

Primary author

Prof. Tobias Frederico (Instituto Tecnologico de Aeronautica)

Presentation Materials