https://doi.org/10.1140/epja/i2006-10403-3
PAVI 2006
Nucleon form factors of the isovector axial-vector current
Situation of experiments and theory
Institut für Kernphysik, Johannes Gutenberg-Universität, D-55099, Mainz, Germany
* e-mail: schindle@kph.uni-mainz.de
Received:
31
August
2006
Accepted:
18
March
2007
Published online:
19
June
2007
The theoretical and experimental status of the isovector axial-vector current form factors G A(q 2) and G P(q 2) of the nucleon is reviewed. We also describe a new calculation of these form factors in manifestly Lorentz-invariant chiral perturbation theory (ChPT) with the inclusion of axial-vector mesons as explicit degrees of freedom.
PACS: 11.40.-q Currents and their properties – / 12.39.Fe Chiral Lagrangians –
© Società Italiana di Fisica and Springer-Verlag, 2007
