Article
Density dependence of 2p-2h meson-exchange currents
Author/s | Amaro Soriano, José Enrique
Barbaro, M. B. Caballero Carretero, Juan Antonio de Pace, A. Donnelly, T. W. Megías Vázquez, Guillermo Daniel Ruiz Simo, I. |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2017-06-12 |
Deposit Date | 2017-09-05 |
Published in |
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Abstract | We analyze the density dependence of the contribution of meson-exchange currents to the lepton-nucleus inclusive cross section in the two-particle two-hole channel. The model is based on the relativistic Fermi gas, where ... We analyze the density dependence of the contribution of meson-exchange currents to the lepton-nucleus inclusive cross section in the two-particle two-hole channel. The model is based on the relativistic Fermi gas, where each nucleus is characterized by its Fermi momentum kF. We find that the 2p-2h nuclear response functions at their peaks scale as AkF2 for Fermi momentum going from 200 to 300 MeV/c and momentum transfer q from 2kF to 2 GeV/c. This behavior is different from what is found for the quasielastic response, which scales as A/kF. Additionally, the deep scaling region is also discussed and there the usual scaling behavior is found to be preferable. |
Funding agencies | Ministerio de Economía y Competitividad (MINECO). España Junta de Andalucía |
Project ID. | info:eu-repo/grantAgreement/MINECO/FIS2014-59386-P
info:eu-repo/grantAgreement/MINECO/FIS2014-53448-C2-1 FQM-225 FQM160 FQM7632 |
Citation | Amaro Soriano, J.E., Barbaro, M.B., Caballero Carretero, J.A., de Pace, A., Donnelly, T.W., Megías Vázquez, G.D. y Ruiz Simo, I. (2017). Density dependence of 2p-2h meson-exchange currents. Physical Review C - Nuclear Physics, 95 (6), 065502. https://doi.org/10.1103/PhysRevC.95.065502. |
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