Artículo
Scaling function, spectral function, and nucleon momentum distribution in nuclei
Autor/es | Antonov, A. N.
Ivanov, M. V. Caballero Carretero, Juan Antonio Barbaro, M. B. Udías, J. M. Moya de Guerra, E. Donnelly, T. W. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2011 |
Fecha de depósito | 2017-04-19 |
Publicado en |
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Resumen | The link between the scaling function extracted from the analysis of (e,e') cross sections and the spectral function/momentum distribution in nuclei is revisited. Several descriptions of the spectral function based on the ... The link between the scaling function extracted from the analysis of (e,e') cross sections and the spectral function/momentum distribution in nuclei is revisited. Several descriptions of the spectral function based on the independent particle model are employed, together with the inclusion of nucleon correlations, and effects of the energy dependence arising from the width of the hole states are investigated. Although some of these approaches provide rough overall agreement with data, they are not found to be capable of reproducing one of the distinctive features of the experimental scaling function, namely its asymmetry. However, the addition of final-state interactions, incorporated in the present study using either relativistic mean-field theory or via a complex optical potential, does lead to asymmetric scaling functions in accordance with data. The present analysis seems to indicate that final-state interactions constitute an essential ingredient and are required to provide a proper description of the experimental scaling function. |
Identificador del proyecto | CSD2007-00042
FIS2008-01301 FIS2008-04189 PCI2006-A7-0548 FPA2007-62216 FPA2010-17142 FPA2008-03770-E ACI2009-1053 |
Cita | Antonov, A.N., Ivanov, M.V., Caballero Carretero, J.A., Barbaro, M.B., Udías, J.M., Moya de Guerra, E. y Donnelly, T.W. (2011). Scaling function, spectral function, and nucleon momentum distribution in nuclei. Physical Review C - Nuclear Physics, 83 (4), 045504-1-045504-12. |
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