Scaling function, spectral function, and nucleon momentum distribution in nuclei
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 n...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/65408 https://orcid.org/0000-0002-3524-1432 |
| _version_ | 1826201681588649984 |
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| author | Antonov, A. N. Ivanov, M. V. Caballero, J. A. Barbaro, M. B. Udias, J. M. Moya de Guerra, E. Donnelly, T William |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Antonov, A. N. Ivanov, M. V. Caballero, J. A. Barbaro, M. B. Udias, J. M. Moya de Guerra, E. Donnelly, T William |
| author_sort | Antonov, A. N. |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T11:55:16Z |
| format | Article |
| id | mit-1721.1/65408 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:55:16Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/654082023-02-26T07:51:29Z Scaling function, spectral function, and nucleon momentum distribution in nuclei Antonov, A. N. Ivanov, M. V. Caballero, J. A. Barbaro, M. B. Udias, J. M. Moya de Guerra, E. Donnelly, T William Massachusetts Institute of Technology. Center for Theoretical Physics Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Donnelly, T. William Donnelly, T. William 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. DGI (Spain) (contract FIS2008-01301) DGI (Spain) (contract FIS2008-04189) DGI (Spain) (contract PCI2006-A7-0548) DGI (Spain) (contract FPA2007-62216) DGI (Spain) (contract FPA2010-17142) Spanish Consolider-Ingenio programme CPAN (CSD2007-00042) United States. Dept. of Energy (cooperative agreement DE-FC02-94ER40818) Istituto nazionale di fisica nucleare (INFN)-MICINN (collaborative agreement FPA2008-03770-E) Istituto nazionale di fisica nucleare (INFN)-MICINN (collaborative agreement ACI2009-1053) Bulgarian National Science Fund (contract DO-02-285) Bulgarian National Science Fund (contract DID–02/16–17.12.2009) 2011-08-26T16:41:51Z 2011-08-26T16:41:51Z 2011-04 2011-03 Article http://purl.org/eprint/type/JournalArticle 0556-2813 http://hdl.handle.net/1721.1/65408 Antonov, A. et al. “Scaling Function, Spectral Function, and Nucleon Momentum Distribution in Nuclei.” Physical Review C 83.4 (2011) ©2011 American Physical Society https://orcid.org/0000-0002-3524-1432 en_US http://dx.doi.org/10.1103/PhysRevC.83.045504 Physical Review C Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Antonov, A. N. Ivanov, M. V. Caballero, J. A. Barbaro, M. B. Udias, J. M. Moya de Guerra, E. Donnelly, T William Scaling function, spectral function, and nucleon momentum distribution in nuclei |
| title | Scaling function, spectral function, and nucleon momentum distribution in nuclei |
| title_full | Scaling function, spectral function, and nucleon momentum distribution in nuclei |
| title_fullStr | Scaling function, spectral function, and nucleon momentum distribution in nuclei |
| title_full_unstemmed | Scaling function, spectral function, and nucleon momentum distribution in nuclei |
| title_short | Scaling function, spectral function, and nucleon momentum distribution in nuclei |
| title_sort | scaling function spectral function and nucleon momentum distribution in nuclei |
| url | http://hdl.handle.net/1721.1/65408 https://orcid.org/0000-0002-3524-1432 |
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