Affordable Access

Publisher Website

Pion decays and the pion electromagnetic form factor in a σ-model with quarks

Authors
Journal
Nuclear Physics B
0550-3213
Publisher
Elsevier
Publication Date
Volume
146
Issue
2
Identifiers
DOI: 10.1016/0550-3213(78)90083-4
Disciplines
  • Physics

Abstract

Abstract We study in the one-loop approximation the decays of the pion and the pion electromagnetic form factor at low q 2 in the framework of a σ-model with quarks. The theory has a free parameters the quark and σ masses and the results are very insensitive to their values. We get good approximation for all processes considered except for the ratio of the axial to the vector form factor that appear in the electronic radiative decay of the charged pion. The reason is probably that our model includes the pion-pion interaction only in the isoscalar s-wave at the one-loop level.

There are no comments yet on this publication. Be the first to share your thoughts.