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Phys. Rev. C 60, 015202 (1999) [10 pages]

Photoproduction of scalar mesons on protons and nuclei

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E. Marco1,2, E. Oset1,2, and H. Toki1
1Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
2Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, 46100 Burjassot (Valencia), Spain

Received 7 December 1998; published 18 June 1999

We study the photoproduction of scalar mesons close to the threshold of f0(980) and a0(980) using a unitary chiral model. Peaks for both resonances show up in the invariant mass distributions of pairs of pseudoscalar mesons. A discussion is made on the photoproduction of these resonances in nuclei, which can shed light on their nature, a subject of continuous debate.


©1999 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.60.015202
DOI: 10.1103/PhysRevC.60.015202
PACS: 12.39.Fe, 13.60.Le, 25.20.Lj

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