Artículo
Emission of neutron-proton and proton-proton pairs in electron scattering induced by meson-exchange currents
Autor/es | Ruiz Simo, I.
Amaro Soriano, José Enrique Barbaro, M. B. Pace, Arturo de Caballero Carretero, Juan Antonio Megías Vázquez, Guillermo Daniel Donnelly, T. W. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2016 |
Fecha de depósito | 2017-04-05 |
Publicado en |
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Resumen | We use a relativistic model of meson-exchange currents to compute the proton-neutron and proton-proton
yields in (e,e
) scattering from 12C in the 2p-2h channel. We compute the response functions and cross section
with ... We use a relativistic model of meson-exchange currents to compute the proton-neutron and proton-proton yields in (e,e ) scattering from 12C in the 2p-2h channel. We compute the response functions and cross section with the relativistic Fermi gas model for a range of kinematics from intermediate- to high-momentum transfers. We find a large contribution of neutron-proton configurations in the initial state, as compared to proton-proton pairs. The different emission probabilities of distinct species of nucleon pairs are produced in our model only by meson-exchange currents, mainly by the isobar current.We also analyze the effect of the exchange contribution and show that the direct-exchange interference strongly affects the determination of the np/pp ratio. |
Agencias financiadoras | Ministerio de Economía y Competitividad (MINECO). España Junta de Andalucía |
Identificador del proyecto | FIS2014-59386-P
FIS2014-53448-C2-1 FQM225 FQM160 |
Cita | Ruiz Simó, I.L., Amaro Soriano, J.E., Barbaro, M.B., Pace, A.d., Caballero Carretero, J.A., Megías Vázquez, G.D. y Donnelly, T.W. (2016). Emission of neutron-proton and proton-proton pairs in electron scattering induced by meson-exchange currents. Physical Review C - Nuclear Physics, 94, 054610-1-054610-4. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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Emission of neutron-proton.pdf | 275.2Kb | [PDF] | Ver/ | |