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arXiv · 0902.1818

Theoretical study on pp --> p n pi+ reaction at medium energies

Z. Ouyang·J. J. Xie·B. S. Zou·H. S. Xu
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Abstract

The $pp\to p n π^+$ reaction is a channel with the largest total cross section for pp collision in COSY/CSR energy region. In this work, we investigate individual contributions from various $N^*$ and $Δ^{*}$ resonances with mass up to about 2 GeV for the $pp\to p n π^+$ reaction. We extend a resonance model, which can reproduce the observed total cross section quite well, to give theoretical predictions of various differential cross sections for the present reaction at $T_p=2.88$ GeV. It could serve as a reference for identifying new physics in the future experiments at HIRFL-CSR.

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Z. Ouyang, J. J. Xie, B. S. Zou, H. S. Xu. 2009-02-11. Theoretical study on pp --> p n pi+ reaction at medium energies. https://doi.org/10.1142/s0218301309012306

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