Measurement of nuclear transparency ratios for protons and neutrons
This paper presents, for the first time, measurements of neutron transparency ratios for nuclei relative to C measured using the (e,e′n) reaction, spanning measured neutron momenta of 1.4 to 2.4 GeV/c. The transparency ratios were extracted in two kinematical regions, corresponding to knockout of me...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Elsevier BV
2020
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| Online Access: | https://hdl.handle.net/1721.1/126764 |
| _version_ | 1811072492095143936 |
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| author | CLAS Collaboration Hen, Or Cruz-Torres, R. Laskaris, Georgios Beck, S. May-Tal Patsyuk, Maria Schmookler, Barak Abraham Segarra, E. P. |
| author2 | Massachusetts Institute of Technology. Laboratory for Nuclear Science |
| author_facet | Massachusetts Institute of Technology. Laboratory for Nuclear Science CLAS Collaboration Hen, Or Cruz-Torres, R. Laskaris, Georgios Beck, S. May-Tal Patsyuk, Maria Schmookler, Barak Abraham Segarra, E. P. |
| author_sort | CLAS Collaboration |
| collection | MIT |
| description | This paper presents, for the first time, measurements of neutron transparency ratios for nuclei relative to C measured using the (e,e′n) reaction, spanning measured neutron momenta of 1.4 to 2.4 GeV/c. The transparency ratios were extracted in two kinematical regions, corresponding to knockout of mean-field nucleons and to the breakup of Short-Range Correlated nucleon pairs. The extracted neutron transparency ratios are consistent with each other for the two measured kinematical regions and agree with the proton transparencies extracted from new and previous (e,e′p) measurements, including those from neutron-rich nuclei such as lead. The data also agree with and confirm the Glauber approximation that is commonly used to interpret experimental data. The nuclear-mass-dependence of the extracted transparencies scales as Aα with α=−0.289±0.007, which is consistent with nuclear-surface dominance of the reactions. |
| first_indexed | 2024-09-23T09:06:49Z |
| format | Article |
| id | mit-1721.1/126764 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:06:49Z |
| publishDate | 2020 |
| publisher | Elsevier BV |
| record_format | dspace |
| spelling | mit-1721.1/1267642022-09-26T10:34:08Z Measurement of nuclear transparency ratios for protons and neutrons CLAS Collaboration Hen, Or Cruz-Torres, R. Laskaris, Georgios Beck, S. May-Tal Patsyuk, Maria Schmookler, Barak Abraham Segarra, E. P. Massachusetts Institute of Technology. Laboratory for Nuclear Science This paper presents, for the first time, measurements of neutron transparency ratios for nuclei relative to C measured using the (e,e′n) reaction, spanning measured neutron momenta of 1.4 to 2.4 GeV/c. The transparency ratios were extracted in two kinematical regions, corresponding to knockout of mean-field nucleons and to the breakup of Short-Range Correlated nucleon pairs. The extracted neutron transparency ratios are consistent with each other for the two measured kinematical regions and agree with the proton transparencies extracted from new and previous (e,e′p) measurements, including those from neutron-rich nuclei such as lead. The data also agree with and confirm the Glauber approximation that is commonly used to interpret experimental data. The nuclear-mass-dependence of the extracted transparencies scales as Aα with α=−0.289±0.007, which is consistent with nuclear-surface dominance of the reactions. 2020-08-24T18:20:30Z 2020-08-24T18:20:30Z 2019-10 2020-03-03T19:08:57Z Article http://purl.org/eprint/type/JournalArticle 1873-2445 0370-2693 https://hdl.handle.net/1721.1/126764 CLAS Collaboration (Duer, M. et al.) "Measurement of nuclear transparency ratios for protons and neutrons." Physics Letters B 797 (October 2019): 134792 ©2019 Author(s) en 10.1016/J.PHYSLETB.2019.07.039 Physics Letters B Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier BV Elsevier |
| spellingShingle | CLAS Collaboration Hen, Or Cruz-Torres, R. Laskaris, Georgios Beck, S. May-Tal Patsyuk, Maria Schmookler, Barak Abraham Segarra, E. P. Measurement of nuclear transparency ratios for protons and neutrons |
| title | Measurement of nuclear transparency ratios for protons and neutrons |
| title_full | Measurement of nuclear transparency ratios for protons and neutrons |
| title_fullStr | Measurement of nuclear transparency ratios for protons and neutrons |
| title_full_unstemmed | Measurement of nuclear transparency ratios for protons and neutrons |
| title_short | Measurement of nuclear transparency ratios for protons and neutrons |
| title_sort | measurement of nuclear transparency ratios for protons and neutrons |
| url | https://hdl.handle.net/1721.1/126764 |
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