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

Abstract

The $pp\to pn{\pi }^{+}$ 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 $N^{\ast }$ and ${\Delta }^{\ast }$ resonances with mass up to about 2 GeV for the $pp\to pn{\pi }^{+}$ 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.

talk at STORI08, Sept. 2008, Lanzhou, China

References in corpus (1)

• Evidence for a 'Narrow' Roper Resonance - the Breathing Mode of the Nucleon

Cited by in corpus (1)

• Proposal for Studying $N^{\ast }$ Resonances with $\bar{p}p\to \bar{p}n{\pi }^{+}$ Reaction