Calculation of the N to Delta electromagnetic transition matrix element

Alexandrou, C.; de Forcrand, Ph.; Lippert, Th.; Neff, H.; Negele, J. W.; Schilling, K.; Schroers, W.; Tsapalis, A.

Calculation of the N to Delta electromagnetic transition matrix element

Authors

Description

We present results on the ratio of electric quadrupole to magnetic dipole amplitudes, $R_{EM}={\cal G}_{E2}/{\cal G}_{M1}$, for the transition $γN to Δ$ from lattice QCD. We consider both the quenched and the 2-flavor theory.
3 pages, 4 figures, talk presented at Lattice2002(matrixel); Layout of figures adjusted