Eur. Phys. J. A (2004) 21: 303-312
https://doi.org/10.1140/epja/i2003-10207-y

The study of the neutral pion production in proton-proton collisions at beam momenta 1581 and 1683 MeV/c

Petersburg Nuclear Physics Institute, 188300, Gatchina, Russia

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Abstract

The detailed investigation of the reaction has been carried out at two incident proton momenta. Momentum, angular and effective-mass distributions were analyzed in the framework of the one-pion exchange model. Taking into account only the P ₃₃-wave in the pole diagrams allows one to obtain a good agreement with experimental data on differential distributions. At the same time the predictions for total cross-sections are much lower than the experimental data.