Surface and volume effects in the photoabsorption of nuclei

Krusche, B. and Lehr, J. and Bloch, F. and Kotulla, M. and Metag, V. and Mosel, U. and Schadmand, S.. (2004) Surface and volume effects in the photoabsorption of nuclei. The European physical journal. A, Hadrons and nuclei, Vol. 22, H. 3. pp. 347-351.

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Official URL: http://edoc.unibas.ch/dok/A5261944

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Recent experimental results for meson photoproduction from nuclei obtained with TAPS at MAMI are analyzed in view of the suppression of the second nucleon resonance region in total photoabsorption. The cross-sections can be split into a component from the low-density surface region of nuclei and a component which scales more like the nuclear volume. The energy dependence of the surface component is similar to the deuteron cross-section, it shows a clear signal for the second resonance peak assigned to the excitation of the P-11 (1440), D-13 (1520), and S-11 (1535). The volume component behaves differently, it is lacking the second resonance peak and shows an enhancement at intermediate photon energies.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Hadronenphysik (Krusche)
UniBasel Contributors:Krusche, Bernd
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:26
Deposited On:22 Mar 2012 13:55

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