6533b854fe1ef96bd12aeb65
RESEARCH PRODUCT
Recent developments in effective field theory
Stefan Scherersubject
PhysicsNuclear and High Energy PhysicsChiral perturbation theoryMesonNuclear TheoryHigh Energy Physics::LatticeNuclear TheoryDegrees of freedom (statistics)FOS: Physical sciencesRenormalizationNuclear Theory (nucl-th)Theoretical physicsPionRegularization (physics)Effective field theoryNucleonNuclear Experimentdescription
We will give a short introduction to the one-nucleon sector of chiral perturbation theory and will address the issue of a consistent power counting and renormalization. We will 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 O(q^6) and the inclusion of vector and axial-vector mesons in the calculation of nucleon form factors.
year | journal | country | edition | language |
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2007-11-02 |