Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2011-12-16
Physics
Nuclear Physics
Nuclear Experiment
The interested reader is advised to study also the paper on pi minus production by S.Dymov et al., which has also been submitt
Scientific paper
In order to establish links between p-wave pion production in nucleon-nucleon collisions and low energy three-nucleon scattering, an extensive programme of experiments on pion production is currently underway at COSY-ANKE. The final proton pair is detected at very low excitation energy, leading to an S-wave diproton, denoted here as {pp}_s. We now report on measurements of the differential cross section and analysing power of the pol{p}p->{pp}_s pi^0$ reaction at 353 MeV. Both observables can be described in terms of s- and d-wave pion production and, by using the phase information from elastic pp scattering, unique solutions can be obtained for the corresponding amplitudes. This information is vital for the partial wave decomposition of the corresponding pn->{pp}_s pi^- reaction and hence for the extraction of the p-wave terms.
Azaryan T.
Baru Vadim
Chiladze D.
Dymov S.
Dzyuba A.
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