Calculation of the N to $\Delta$ electromagnetic transition matrix element

We present results on the ratio of electric quadrupole to magnetic dipole amplitudes, $R_{EM}={\cal G}_{E2}/{\cal G}_{M1}$, for the transition $\gamma N\to \Delta$ from lattice QCD. We consider both the quenched and the 2-flavor theory.

Detalles Bibliográficos
Autores principales: Alexandrou, C., de Forcrand, P., Lippert, T., Neff, H., Negele, John W., Schilling, K., Schroers, W., Tsapalis, A.
Lenguaje:eng
Publicado: 2002
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1016/S0920-5632(03)01571-8
http://cds.cern.ch/record/579803

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