Artículo
Pionic correlations and meson-exchange currents in two-particle emission induced by electron scattering
Autor/es | Amaro Soriano, José Enrique
Maieron, C. Barbaro, M. B. Caballero Carretero, Juan Antonio Donnelly, T. W. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2010 |
Fecha de depósito | 2017-04-19 |
Publicado en |
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Resumen | Two-particle two-hole contributions to electromagnetic response functions are computed in a fully relativistic Fermi gas model. All one-pion exchange diagrams that contribute to the scattering amplitude in perturbation ... Two-particle two-hole contributions to electromagnetic response functions are computed in a fully relativistic Fermi gas model. All one-pion exchange diagrams that contribute to the scattering amplitude in perturbation theory are considered, including terms for pionic correlations and meson-exchange currents (MECs). The pionic correlation terms diverge in an infinite system and thus are regularized by modification of the nucleon propagator in the medium to take into account the finite size of the nucleus. The pionic correlation contributions are found to be of the same order of magnitude as the MECs. |
Identificador del proyecto | FIS2008-01143
FPA2006-13807-C02-01 FIS2008-04189 FPA2007-62216 FPA2008-03770-E-INFN ACI2009-1053 CSD2007-00042 |
Cita | Amaro Soriano, J.E., Maieron, C., Barbaro, M.B., Caballero Carretero, J.A. y Donnelly, T.W. (2010). Pionic correlations and meson-exchange currents in two-particle emission induced by electron scattering. Physical Review C - Nuclear Physics, 82 (4), 044601-1-044601-13. |
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