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

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Cited by in corpus (16)

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• Proposal for Studying $N^{\ast }$ Resonances with $\bar{p}p\to \bar{p}n{\pi }^{+}$ Reaction
• Exclusive $pp\to nn{\pi }^{+}{\pi }^{+}$ reaction at LHC and RHIC
• Photoproduction of the $f_2(1270)$ resonance
• Phenomenological study on the $\bar{p}N\to \bar{N}N\pi \pi$ reactions
• Implication of the observed $\psi (3770)\to p\bar{p}{\pi }^0$ for studying the $p\bar{p}\to \psi (3770){\pi }^0$ process
• Complementary studies on $N^{\ast }$ from $e^{+}{e}^{-}$, $pp$ and $p\bar{p}$ collisions
• Detecting the pure triangle sigularity effect through the $\psi (2S)\to p\bar{p}\eta /p\bar{p}{\pi }^0$ process
• Production of the charmoniumlike state $Y(4220)$ through the $p\bar{p}\to Y(4220){\pi }^0$ reaction
• Exclusive $f_1(1285)$ meson production for energy ranges available at the GSI-FAIR with HADES and PANDA
• First estimate of producing the charmed baryon ${\Lambda }_c(2880)$ at PANDA
• The role of triangle singularity in isospin breaking process $J/\psi \to \Lambda \bar{\Lambda }\pi$ and the possible evidence of ${\Sigma }^{\ast }({\frac{1}{2}}^{-})$ states
• Proposal and theoretical formalism for studying baryon radiative decays from J/ψ\to B^*\bar B + \bar{B^*}B \to γB\bar B
• A possible NN*(1440) quasi-molecular state
• Role of the low-lying nucleon resonances in the $p\bar{p}\to \psi \eta$ reaction