53 citations · 160 across the 6 of their papers we have counts for
3 papers · 1 filter
Properties of Nucleon Resonances by means of a Genetic Algorithm
C. Fernandez-Ramirez, E. Moya de Guerra, A. Udias +1
We present an optimization scheme that employs a Genetic Algorithm (GA) to determine the properties of low-lying nucleon excitations within a realistic photo-pion production model…
Spin asymmetry for the 16O(gamma,pi- p) reaction in the Delta(1232) region within an effective Lagrangian approach
C. Fernandez-Ramirez, M. C. Martinez, J. R. Vignote +1
The spin asymmetry of the photon in the exclusive A(gamma,pi N)A-1 reaction is computed employing a recently developed fully relativistic model based on elementary pion production…
Crossing symmetry and phenomenological widths in effective Lagrangian models of the pion photoproduction process
C. Fernandez-Ramirez, E. Moya de Guerra, J. M. Udias
We investigate the importance of crossing symmetry in effective field models and the effects of phenomenological nucleon resonance widths on the paradigmatic case of pion photoprod…