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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.
| Autores principales: | , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2002
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0920-5632(03)01571-8 http://cds.cern.ch/record/579803 |