Journalartikel

Jahr der Veröffentlichung: 2001

Seiten: 4764-4767

Zeitschrift: Physical Review Letters

Bandnummer: 86

Heftnummer: 21

ISSN: 0031-9007

eISSN: 1079-7114

Open Access Status: Green

DOI Link: https://doi.org/10.1103/PhysRevLett.86.4764

Verlag: American Physical Society

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.

Harvard-Zitierstil: Krusche, B., Ahrens, J., Beck, R., MacGregor, I., McGeorge, J., Metag, V., et al. (2001) In-medium properties of the D₁₃(1520) nucleon resonance, Physical Review Letters, 86(21), pp. 4764-4767. https://doi.org/10.1103/PhysRevLett.86.4764

APA-Zitierstil: Krusche, B., Ahrens, J., Beck, R., MacGregor, I., McGeorge, J., Metag, V., & Ströher, H. (2001). In-medium properties of the D₁₃(1520) nucleon resonance. Physical Review Letters. 86(21), 4764-4767. https://doi.org/10.1103/PhysRevLett.86.4764