The role of the $P_{11}(1710)$ in the $NN\to N\Sigma K$ reaction

Abstract

Using the resonance model, which was successfully applied for the study of the $pp\to p\Lambda K^{+}$ reaction, we investigate $NN\to N\Sigma K$ reactions that should provide cleaner information about resonance excitations and meson exchange contributions. For this purpose we demonstrate that the invariant mass distribution for the $\Sigma K$ system, as well as the Dalitz plot for the $NN\to N\Sigma K$ reaction, provide direct information about the $\Sigma K$ production mechanism, which can be tested in the near future by experiments at COSY.

25 pages, LaTeX, including 13 ps-figures, UGI-98-36, ADP-98-68/T335, to be publish in Nucl. Phys. A

References in corpus (3)

• Total Cross Section of the Reaction pp \to pK^+ΛClose to Threshold
• A clue to the mechanism of $\Lambda K^{+}$ production in $pp$-reactions
• ${\eta }^{\prime }$ Production in Proton-Proton Collisions near Threshold

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• Proposal for Studying $N^{\ast }$ Resonances with $\bar{p}p\to \bar{p}n{\pi }^{+}$ Reaction
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• Kaon properties and cross sections in nuclear medium
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• Complementary studies on $N^{\ast }$ from $e^{+}{e}^{-}$, $pp$ and $p\bar{p}$ collisions
• Role of the N*(1440) resonance in the pp->pnpi+ reaction
• Reexamination of the role of the ${\Delta }^{\ast }$ resonances in the $pp\to n{K}^{+}{\Sigma }^{+}$ reaction
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• Threshold Hyperon Production at COSY-11
• Strangeness production in proton-proton and proton-nucleus collisions
• Recent Physics At COSY--A Review
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