Artículo
Parity violation in quasielastic electron-nucleus scattering within the relativistic impulse approximation
Autor/es | González Jiménez, Raúl
Caballero Carretero, Juan Antonio Donnelly, T. W. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2015 |
Fecha de depósito | 2017-04-03 |
Publicado en |
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Resumen | We study parity violation in quasielastic electron-nucleus scattering using the relativistic impulse approximation. Different fully relativistic approaches have been considered to estimate the effects associated with the ... We study parity violation in quasielastic electron-nucleus scattering using the relativistic impulse approximation. Different fully relativistic approaches have been considered to estimate the effects associated with the final-state interactions. We have computed the parity-violating quasielastic (PVQE) asymmetry and have analyzed its sensitivity to the different ingredients that enter into the description of the reaction mechanism: final-state interactions, nucleon off-shellness effects, and current gauge ambiguities. Particular attention has been paid to the description of the weak neutral current form factors. The PVQE asymmetry is proven to be an excellent observable when the goal is to get precise information on the axial-vector sector of the weak neutral current. Specifically, from measurements of the asymmetry at backward scattering angles good knowledge of the radiative corrections entering in the isovector axial-vector sector can be gained. Finally, scaling properties shown by the interference γ-Z nuclear responses are also analyzed. |
Agencias financiadoras | Ministerio de Ciencia e Innovación (MICIN). España Junta de Andalucía |
Identificador del proyecto | FIS2011-28738-C02-0
FQM-160 DE-FG02-94ER40818 |
Cita | González Jiménez, R., Caballero Carretero, J.A. y Donnelly, T.W. (2015). Parity violation in quasielastic electron-nucleus scattering within the relativistic impulse approximation. Physical Review C - Nuclear Physics, 91 (4), 045502. |
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