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In-medium properties of the D₁₃(1520) nucleon resonance

Krusche, B. and Ahrens, J. and Beck, R. and MacGregor, I. J. D. and McGeorge, J. C. and Metag, V. and Stroher, H.. (2001) In-medium properties of the D₁₃(1520) nucleon resonance. Physical review letters, Vol. 86, H. 21. pp. 4764-4767.

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Official URL: http://edoc.unibas.ch/dok/A5261964

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Abstract

The in-medium properties of the D-13(1520) nucleon resonance were studied via photoproduction of pi (0) mesons from nuclei (C, Ca, Nb, Pb) with the TAPS detector at the Mainz Microton accelerator. The inclusive (single and multiple pion production) data disagree with model predictions which explain the disappearance of the second resonance bump in total photoabsorption via a medium modification of the D-13 -< N rho decay. The exclusive single pi (0) production data show no broadening of the resonance structure beyond Fermi smearing. Both results together cast doubt on attempts to explain the vanishing of the second resonance bump for nuclei by a broadening of the D-13 resonance.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Hadronenphysik (Krusche)
UniBasel Contributors:Krusche, Bernd
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
ISSN:0031-9007
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:22 Mar 2012 14:26
Deposited On:22 Mar 2012 13:53

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