Repositorio de producción científica de la Universidad de Sevilla

Relativistic model of 2p-2h meson exchange currents in (anti)neutrino scattering

Opened Access Relativistic model of 2p-2h meson exchange currents in (anti)neutrino scattering

Citas

buscar en

Estadísticas
Icon
Exportar a
Autor: Ruiz Simo, I.
Amaro, J. E.
Barbaro, M. B.
Caballero Carretero, Juan Antonio
Donnelly, T. W.
Pace, A. de
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2017-04-26
Publicado en: Journal of Physics G: Nuclear and Particle Physics, 44 (6), 1-17.
Tipo de documento: Artículo
Resumen: We develop a model of relativistic, charged meson-exchange currents (MEC) for neutrino-nucleus interactions. The two-body current is the sum of seagull, pion-in-flight, pion-pole and Δ-pole operators. These operators are obtained from the weak pion-production amplitudes for the nucleon derived in the nonlinear σ-model together with weak excitation of the resonance and its subsequent decay into . With these currents we compute the five 2p-2h response functions contributing to and reactions in the relativistic Fermi gas model. The total current is the sum of vector and axial two-body currents. The vector current is related to the electromagnetic MEC operator that contributes to electron scattering. This allows one to check our model by comparison with the results of De Pace et al (2003 Nucl. Phys. A 726 303). Thus, our model is a natural extension of that model to the weak sector with the addition of the axial MEC operator. The dependences of the response functions on several ingredient...
[Ver más]
Cita: Ruiz Simo, I., Amaro, J.E., Barbaro, M.B., Caballero Carretero, J.A., Donnelly, T.W. y Pace, A.d. (2017). Relativistic model of 2p-2h meson exchange currents in (anti)neutrino scattering. Journal of Physics G: Nuclear and Particle Physics, 44 (6), 1-17.
Tamaño: 346.5Kb
Formato: PDF

URI: http://hdl.handle.net/11441/64190

DOI: 10.1088/1361-6471/aa6a06

Ver versión del editor

Mostrar el registro completo del ítem


Esta obra está bajo una Licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internacional

Este registro aparece en las siguientes colecciones