Nuclear transparency and effective kaon-nucleon cross section from the A(e,e′K+) reaction
We have determined the transparency of the nuclear medium to kaons from A(e,e[superscript ′]K+) measurements on [superscript 12]C, [superscript 63]Cu, and [superscript 197]Au targets. The measurements were performed at the Jefferson Laboratory and span a range in four-momentum-transfer squared Q[sup...
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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/1721.1/67058 |
| _version_ | 1826196236885032960 |
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| author | Clasie, Benjamin Michael Patrick Gao, Haiyan Seely, Jason |
| author2 | Massachusetts Institute of Technology. Laboratory for Nuclear Science |
| author_facet | Massachusetts Institute of Technology. Laboratory for Nuclear Science Clasie, Benjamin Michael Patrick Gao, Haiyan Seely, Jason |
| author_sort | Clasie, Benjamin Michael Patrick |
| collection | MIT |
| description | We have determined the transparency of the nuclear medium to kaons from A(e,e[superscript ′]K+) measurements on [superscript 12]C, [superscript 63]Cu, and [superscript 197]Au targets. The measurements were performed at the Jefferson Laboratory and span a range in four-momentum-transfer squared Q[superscript 2]=1.1–3.0 GeV[superscript 2]. The nuclear transparency was defined as the ratio of measured kaon electroproduction cross sections with respect to deuterium (σ[superscript A]/σ[superscript D]). We further extracted the atomic number (A) dependence of the transparency as parametrized by T=(A/2)[superscript α-1] and, within a simple model assumption, the in-medium effective kaon-nucleon cross sections. The effective cross sections extracted from the electroproduction data were found to be smaller than the free cross sections determined from kaon-nucleon scattering experiments, and the parameter α was found to be significantly larger than those obtained from kaon-nucleus scattering. We have included similar comparisons between pion- and proton-nucleon effective cross sections as determined from electron-scattering experiments and pion-nucleus and proton-nucleus scattering data. |
| first_indexed | 2024-09-23T10:23:20Z |
| format | Article |
| id | mit-1721.1/67058 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:23:20Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/670582023-02-26T09:58:26Z Nuclear transparency and effective kaon-nucleon cross section from the A(e,e′K+) reaction Clasie, Benjamin Michael Patrick Gao, Haiyan Seely, Jason Massachusetts Institute of Technology. Laboratory for Nuclear Science Clasie, Benjamin Michael Patrick Clasie, Benjamin Michael Patrick Gao, Haiyan Seely, J. We have determined the transparency of the nuclear medium to kaons from A(e,e[superscript ′]K+) measurements on [superscript 12]C, [superscript 63]Cu, and [superscript 197]Au targets. The measurements were performed at the Jefferson Laboratory and span a range in four-momentum-transfer squared Q[superscript 2]=1.1–3.0 GeV[superscript 2]. The nuclear transparency was defined as the ratio of measured kaon electroproduction cross sections with respect to deuterium (σ[superscript A]/σ[superscript D]). We further extracted the atomic number (A) dependence of the transparency as parametrized by T=(A/2)[superscript α-1] and, within a simple model assumption, the in-medium effective kaon-nucleon cross sections. The effective cross sections extracted from the electroproduction data were found to be smaller than the free cross sections determined from kaon-nucleon scattering experiments, and the parameter α was found to be significantly larger than those obtained from kaon-nucleus scattering. We have included similar comparisons between pion- and proton-nucleon effective cross sections as determined from electron-scattering experiments and pion-nucleus and proton-nucleus scattering data. United States. Dept. of Energy National Science Foundation (U.S.) Natural Sciences and Engineering Research Council of Canada (NSERC) United States. Dept. of Energy (Contract No. DEAC05- 84ER40150) 2011-11-18T17:24:38Z 2011-11-18T17:24:38Z 2011-07 2011-03 Article http://purl.org/eprint/type/JournalArticle 0556-2813 http://hdl.handle.net/1721.1/67058 Nuruzzaman et al. “Nuclear transparency and effective kaon-nucleon cross section from the A(e,e^{′}K^{+}) reaction.” Physical Review C 84 (2011): n. pag. Web. 18 Nov. 2011. © 2011 American Physical Society en_US http://dx.doi.org/10.1103/PhysRevC.84.015210 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 | Clasie, Benjamin Michael Patrick Gao, Haiyan Seely, Jason Nuclear transparency and effective kaon-nucleon cross section from the A(e,e′K+) reaction |
| title | Nuclear transparency and effective kaon-nucleon cross section from the A(e,e′K+) reaction |
| title_full | Nuclear transparency and effective kaon-nucleon cross section from the A(e,e′K+) reaction |
| title_fullStr | Nuclear transparency and effective kaon-nucleon cross section from the A(e,e′K+) reaction |
| title_full_unstemmed | Nuclear transparency and effective kaon-nucleon cross section from the A(e,e′K+) reaction |
| title_short | Nuclear transparency and effective kaon-nucleon cross section from the A(e,e′K+) reaction |
| title_sort | nuclear transparency and effective kaon nucleon cross section from the a e e k reaction |
| url | http://hdl.handle.net/1721.1/67058 |
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