6533b835fe1ef96bd12a013d
RESEARCH PRODUCT
Baryon chiral perturbation theory
Stefan Scherersubject
PhysicsHistoryChiral perturbation theoryNuclear TheoryMesonHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyHigh Energy Physics - Lattice (hep-lat)Nuclear TheoryDegrees of freedom (statistics)FOS: Physical sciencesComputer Science ApplicationsEducationNuclear Theory (nucl-th)BaryonRenormalizationHigh Energy Physics - PhenomenologyTheoretical physicsHigh Energy Physics - LatticeHigh Energy Physics - Phenomenology (hep-ph)PionRegularization (physics)Effective field theoryNuclear ExperimentNucleondescription
We provide a short introduction to the one-nucleon sector of chiral perturbation theory and address the issue of power counting and renormalization. We discuss the infrared regularization and the extended on-mass-shell scheme. Both allow for the inclusion of further degrees of freedom beyond pions and nucleons and the application to higher-loop calculations. As applications we consider the chiral expansion of the nucleon mass to order ${\cal O}(q^6)$ and the inclusion of vector and axial-vector mesons in the calculation of nucleon form factors. Finally, we address the complex-mass scheme for describing unstable particles in effective field theory.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-10-02 | Journal of Physics: Conference Series |