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 |
| Language: | English |
| Published: |
Elsevier
2018-05-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269318300777 |
| _version_ | 1811279575757357056 |
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| author | R. Weiss R. Cruz-Torres N. Barnea E. Piasetzky O. Hen |
| author_facet | R. Weiss R. Cruz-Torres N. Barnea E. Piasetzky O. Hen |
| author_sort | R. Weiss |
| collection | DOAJ |
| 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 | 2024-04-13T00:58:11Z |
| format | Article |
| id | doaj.art-e56e2c530d924caf86e07cecb44e3e42 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-13T00:58:11Z |
| publishDate | 2018-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-e56e2c530d924caf86e07cecb44e3e422022-12-22T03:09:35ZengElsevierPhysics Letters B0370-26932018-05-01780211215The nuclear contacts and short range correlations in nucleiR. Weiss0R. Cruz-Torres1N. Barnea2E. Piasetzky3O. Hen4Racah Institute of Physics, Hebrew University, Jerusalem 91904, IsraelMassachusetts Institute of Technology, Cambridge, MA 02139, USARacah Institute of Physics, Hebrew University, Jerusalem 91904, IsraelSchool of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, IsraelMassachusetts Institute of Technology, Cambridge, MA 02139, USA; Corresponding author.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.http://www.sciencedirect.com/science/article/pii/S0370269318300777 |
| spellingShingle | R. Weiss R. Cruz-Torres N. Barnea E. Piasetzky O. Hen The nuclear contacts and short range correlations in nuclei Physics Letters B |
| 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://www.sciencedirect.com/science/article/pii/S0370269318300777 |
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