Artículo
Meson-exchange currents and final-state interactions in quasielastic electron scattering at high momentum transfers
Autor/es | Amaro Soriano, José Enrique
Barbaro, M. B. Caballero Carretero, Juan Antonio Donnelly, T. W. Maieron, C. Udías, J. M. |
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 | The effects of meson-exchange currents (MEC) are computed for the one-particle one-hole transverse response function for finite nuclei at high momentum transfers q in the region of the quasi-elastic peak. A semirelativistic ... The effects of meson-exchange currents (MEC) are computed for the one-particle one-hole transverse response function for finite nuclei at high momentum transfers q in the region of the quasi-elastic peak. A semirelativistic shell model is used for the one-particle-emission (e,e') reaction. Relativistic effects are included using relativistic kinematics, performing a semirelativistic expansion of the current operators, and using the Dirac-equation-based (DEB) form of the relativistic mean-field potential for the final states. It is found that final-state interactions (FSI) produce an important enhancement of the MEC in the high-energy tail of the response function for q≥1 GeV/c. The combined effect of MEC and FSI goes away when other models of the FSI, not based on the DEB potential, are employed. |
Agencias financiadoras | Ministerio de Ciencia e Innovación (MICIN). España Junta de Andalucía |
Identificador del proyecto | FIS2008-01143
FPA2006-13807-C02-01 FIS2008-04189 FPA2007-62216 CSD2007-00042 |
Cita | Amaro Soriano, J.E., Barbaro, M.B., Caballero Carretero, J.A., Donnelly, T.W., Maieron, C. y Udías, J.M. (2010). Meson-exchange currents and final-state interactions in quasielastic electron scattering at high momentum transfers. Physical Review C - Nuclear Physics, 81 (1), 014606-1-014606-4. |
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