Trabalho apresentado em evento
Ideas of four-fermion operators in hadron physics
Acta Physica Polonica B, Proceedings Supplement, v. 6, n. 1, p. 117-123, 2013.
North Carolina State University
Kyungpook National University
Universidade Estadual Paulista (Unesp)
Four-fermion operators have been utilized in the past to link the quarkexchange processes in the interaction of hadrons with the effective mesonexchange amplitudes. In this paper, we apply the similar idea of Fierz rearrangement to the electromagnetic processes and focus on the electromagnetic form factors of nucleon and electron. We explain the motivation of using four-fermion operators and discuss the advantage of this method in computing electromagnetic processes.