6533b820fe1ef96bd1279c2c
RESEARCH PRODUCT
Measurement of the p(γ,π^{0}) cross section at threshold
Johannes VogtS.j. HallGilbert KochJ. D. KellieB. SchochJ. C. McgeorgeR. BeckV. MetagH. StröherF. Kalleichersubject
Nuclear reactionPhysicsPhotonAmplitudePionMesonComputer Science::Information RetrievalHadronGeneral Physics and AstronomyElementary particleAtomic physicsBosondescription
Differential and absolute cross sections for the reaction {ital p}({gamma},{pi}{sup 0}) have been measured with energy-defined photons in the threshold region ({ital E}{sub {gamma}}=131.4--157.2 MeV). The {ital E}{sub 0+} amplitude has been extracted out of the data. The values found are in disagreement with predictions of low-energy theorems.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-10-08 | Physical Review Letters |