The nuclear contacts and short range correlations in nuclei
Atomic nuclei are complex strongly interacting systems and their exact theoretical description is a long-standing challenge. An approximate description of nuclei can be achieved by separating its short and long range structure. This separation of scales stands at the heart of the nuclear shell model...
| Main Authors: | , , , , , |
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| Format: | Article |
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Elsevier
2018
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| Online Access: | http://hdl.handle.net/1721.1/118599 https://orcid.org/0000-0002-4890-6544 |
| _version_ | 1811086378156425216 |
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| author | Weiss, R. Cruz-Torres, R. Barnea, N. Piasetzky, E. Cruz Torres, Reynier Hen, Or |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Weiss, R. Cruz-Torres, R. Barnea, N. Piasetzky, E. Cruz Torres, Reynier Hen, Or |
| author_sort | Weiss, R. |
| collection | MIT |
| description | Atomic nuclei are complex strongly interacting systems and their exact theoretical description is a long-standing challenge. An approximate description of nuclei can be achieved by separating its short and long range structure. This separation of scales stands at the heart of the nuclear shell model and effective field theories that describe the long-range structure of the nucleus using a mean-field approximation. We present here an effective description of the complementary short-range structure using contact terms and stylized two-body asymptotic wave functions. The possibility to extract the nuclear contacts from experimental data is presented. Regions in the two-body momentum distribution dominated by high-momentum, close-proximity, nucleon pairs are identified and compared to experimental data. The amount of short-range correlated (SRC) nucleon pairs is determined and compared to measurements. Non-combinatorial isospin symmetry for SRC pairs is identified. The obtained one-body momentum distributions indicate dominance of SRC pairs above the nuclear Fermi-momentum. |
| first_indexed | 2024-09-23T13:25:03Z |
| format | Article |
| id | mit-1721.1/118599 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T13:25:03Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/1185992022-09-28T14:01:58Z The nuclear contacts and short range correlations in nuclei Weiss, R. Cruz-Torres, R. Barnea, N. Piasetzky, E. Cruz Torres, Reynier Hen, Or Massachusetts Institute of Technology. Department of Physics Cruz Torres, Reynier Hen, Or Atomic nuclei are complex strongly interacting systems and their exact theoretical description is a long-standing challenge. An approximate description of nuclei can be achieved by separating its short and long range structure. This separation of scales stands at the heart of the nuclear shell model and effective field theories that describe the long-range structure of the nucleus using a mean-field approximation. We present here an effective description of the complementary short-range structure using contact terms and stylized two-body asymptotic wave functions. The possibility to extract the nuclear contacts from experimental data is presented. Regions in the two-body momentum distribution dominated by high-momentum, close-proximity, nucleon pairs are identified and compared to experimental data. The amount of short-range correlated (SRC) nucleon pairs is determined and compared to measurements. Non-combinatorial isospin symmetry for SRC pairs is identified. The obtained one-body momentum distributions indicate dominance of SRC pairs above the nuclear Fermi-momentum. Pazy Foundation Israel Science Foundation (Grant 136/12) Israel Science Foundation (Grant 1334/16) United States. Department of Energy. Office of Nuclear Physics (Award DE-FG02-94ER40818) 2018-10-18T13:42:49Z 2018-10-18T13:42:49Z 2018-02 2017-11 2018-10-11T14:40:30Z Article http://purl.org/eprint/type/JournalArticle 0370-2693 http://hdl.handle.net/1721.1/118599 Weiss, R., et al. “The Nuclear Contacts and Short Range Correlations in Nuclei.” Physics Letters B, vol. 780, May 2018, pp. 211–15. © 2018 The Author(s) https://orcid.org/0000-0002-4890-6544 http://dx.doi.org/10.1016/j.physletb.2018.01.061 Physics Letters B Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier Elsevier |
| spellingShingle | Weiss, R. Cruz-Torres, R. Barnea, N. Piasetzky, E. Cruz Torres, Reynier Hen, Or The nuclear contacts and short range correlations in nuclei |
| title | The nuclear contacts and short range correlations in nuclei |
| title_full | The nuclear contacts and short range correlations in nuclei |
| title_fullStr | The nuclear contacts and short range correlations in nuclei |
| title_full_unstemmed | The nuclear contacts and short range correlations in nuclei |
| title_short | The nuclear contacts and short range correlations in nuclei |
| title_sort | nuclear contacts and short range correlations in nuclei |
| url | http://hdl.handle.net/1721.1/118599 https://orcid.org/0000-0002-4890-6544 |
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