Hyperon nucleon interactions in the p p ---> K+ Lambda p reaction

Sep, 1999
24 pages
Published in:
  • Int.J.Mod.Phys.E 9 (2000) 431
e-Print:

Citations per year

20002001200220032004201
Abstract:
We present calculations of the invariant mass spectra of the Λ\Lambdap system for the exclusive ppK+Λpp p \to K^+ \Lambda p reaction with the aim of studying the final state interaction between the Λ\Lambda-hyperon and the proton. The reaction is described within a meson exchange framework and the final state Λp\Lambda p interaction is incorporated through an off-shell t-matrix for the ΛpΛp\Lambda p \to \Lambda p scattering, constructed using the available hyperon-nucleon (YN) potentials. The cross sections are found to be sensitive to the type of YN potential used especially at the Λ\Lambda and Σ\Sigma production thresholds. Hence, data on this exclusive reaction, which can be used to constrain the YN potentials are desirable.
  • p p: exclusive reaction
  • mass spectrum: (Lambda p)
  • p Lambda: final-state interaction
  • nucleon hyperon: interaction
  • meson: exchange
  • p Lambda: elastic scattering
  • potential: transition
  • Feynman graph
  • numerical calculations: interpretation of experiments
  • p p --> Lambda p K+
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