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In-medium properties of the D₁₃(1520) nucleon resonance
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 169793
Author(s) Krusche, B; Ahrens, J; Beck, R; MacGregor, IJD; McGeorge, JC; Metag, V; Stroher, H
Author(s) at UniBasel Krusche, Bernd
Year 2001
Title In-medium properties of the D₁₃(1520) nucleon resonance
Journal Physical review letters
Volume 86
Number 21
Pages / Article-Number 4764-4767
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.

Publisher American Physical Society
ISSN/ISBN 0031-9007
edoc-URL http://edoc.unibas.ch/dok/A5261964
Full Text on edoc No
Digital Object Identifier DOI 10.1103/PhysRevLett.86.4764
ISI-Number WOS:000168861800012
Document type (ISI) Article
 
   

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