Nuclear transparency and effective kaon-nucleon cross section from the A(e,e′K+) reaction
Name
Nuruzzaman-2011-Nuclear transparency and effective.pdf
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284.6 KB
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Author(s)
Clasie, Benjamin Michael Patrick
Gao, Haiyan
Seely, Jason
Date Issued
July 2011
Journal
Physical Review C
Publisher
American Physical Society
Citation
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
Version
Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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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.
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DOI of Published Version
https://doi.org/10.1103/PhysRevC.84.015210
