6533b830fe1ef96bd1296556
RESEARCH PRODUCT
Search for narrow dibaryon resonances in neutral pion photoproduction from the deuteron
G. J. WagnerV. MetagA. SchmidtMatthias WolfJ. D. KellieM. KotullaJ. WeißB. KruscheV. HejnyM. SchepkinR. LeukelPatrick AchenbachV. KuhrF. WissmannR. BeckH. StröherJ. AhrensR. W. NovotnyH. J. ArendsJ. C. McgeorgeF. RamboV. Olmos De LeónTh. WalcherR. BilgerH. ClementU. Siodlaczeksubject
PhysicsNuclear and High Energy PhysicsRange (particle radiation)Particle physicsIsovectorSpectrometer010308 nuclear & particles physicsIsoscalarNuclear TheoryHadronPhoton energy7. Clean energy01 natural sciencesNuclear physicsPion0103 physical sciencesNuclear fusionNuclear Experiment010306 general physicsdescription
The reaction γd↦π0 X has been measured with TAPS at MAMI in the energy range E γ = 140-300 MeV. Using the Glasgow tagging spectrometer a photon energy resolution of 0.8 MeV was achieved. The energy excitation functions of integral and differential total cross-sections show no structures of statistical significance > 2σ. Upper limits for the production of narrow isoscalar or isovector dibaryons with masses m? 2100 MeV/c2 were deduced. They are in the range 2-5 μb averaged over the 0.8 MeV energy resolution.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-12-01 | The European Physical Journal A |