Speaker
Gabriel Lee
(University of Chicago)
Description
The parity and time-reversal invariant effective Lagrangian for a heavy fermion inter- acting with an Abelian gauge field, i.e., NRQED, is constructed through order 1/M4. The implementation of Lorentz invariance in the effective theory becomes nontrivial at this order, and a complete solution for Wilson coefficient constraints is obtained. Matching conditions in the one-fermion sector are presented in terms of form factors and two-photon matrix elements of the nucleon. The extension of NRQED to describe inter- actions of the heavy fermion with a light fermion is introduced. Sample applications are discussed; these include the computation of nuclear structure effects in atomic bound states, the model-independent analysis of radiative corrections to low-energy lepton- nucleon scattering, and the study of static electromagnetic properties of nucleons.
Authors
Gabriel Lee
(University of Chicago)
Prof.
Gil Paz
(Wayne State University)
Mikhail Solon
(U)
Richard Hill
