https://doi.org/10.1140/epja/i2006-10098-4
Hadron Physics
Chiral perturbation theory for nucleon generalized parton distributions
1
Theory Group, Deutsches Elektronen-Synchroton DESY, 22603, Hamburg, Germany
2
Institut für Theoretische Physik, Universität Regensburg, 93040, Regensburg, Germany
3
Department of Theoretical Physics, Sankt-Petersburg State University, St.-Petersburg, Russia
Received:
4
September
2006
Accepted:
6
September
2006
Published online:
27
September
2006
We analyze the moments of the isosinglet generalized parton distributions H, E, 
, 
of the nucleon in one-loop order of heavy-baryon chiral perturbation theory. We discuss in detail the construction of the operators in the effective theory that are required to obtain all corrections to a given order in the chiral power counting. The results will serve to improve the extrapolation of lattice results to the chiral limit.
PACS: 12.38.-t Quantum chromodynamics – / 12.38.Bx Perturbative calculations – / 12.39.Fe Chiral Lagrangians –
© Società Italiana di Fisica and Springer-Verlag, 2006
