Pion Structure at High and Low Energies in Chiral Quark Models

E. Ruiz Arriola

Pion Structure at High and Low Energies in Chiral Quark Models

High Energy Physics - Phenomenology 2007-05-23 v1

Authors: E. Ruiz Arriola

Abstract

Low and high energy properties of the pion are reviewed in the framework of chiral quark models. Particular emphasis is put on the simplest version of the SU(2) NJL model as prototype. The role of gauge invariance in this kind of calculations is stressed. The results are used as initial conditions for perturbative QCD evolution equations. At leading order the quark model scale is $\mu_0 \sim 320 {\rm MeV}$ as determined from the pion distribution functions and the pion distribution amplitudes.

Keywords

chiral quark models pion structure SU(2) NJL model distribution amplitudes perturbative QCD

Cite

@article{arxiv.hep-ph/0210007,
  title  = {Pion Structure at High and Low Energies in Chiral Quark Models},
  author = {E. Ruiz Arriola},
  journal= {arXiv preprint arXiv:hep-ph/0210007},
  year   = {2007}
}

Comments

36 pages, 11 figures; Lectures given at the XLII Krakow School on Theoretical Physics (Zakopane), May 31st-June 9th 2002

Pion Structure at High and Low Energies in Chiral Quark Models

Abstract

Keywords

Cite

Comments

Related papers