Search for narrow dibaryon resonances in neutral pion photoproduction fromthe deuteron

Citation
U. Siodlaczek et al., Search for narrow dibaryon resonances in neutral pion photoproduction fromthe deuteron, EUR PHY J A, 9(3), 2000, pp. 309-311
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
1434-6001 → ACNP
Volume
9
Issue
3
Year of publication
2000
Pages
309 - 311
Database
ISI
SICI code
1434-6001(200011)9:3<309:SFNDRI>2.0.ZU;2-A
Abstract
The reaction gammad --> pi X-0 has been measured with TAPS at MAMI in the e nergy range E-gamma = 140-300 MeV. Using the Glasgow tagging spectrometer a photon energy resolution of 0.8 MeV was achieved. The energy excitation fu nctions of integral and differential total cross-sections show no structure s of statistical significance > 2 sigma. Upper limits for the production of narrow isoscalar or isovector dibaryons with masses m less than or equal t o 2100 MeV/c(2) were deduced. They are in the range 2-5 mub averaged over t he 0.8 MeV energy resolution.