Measurement of the differential cross section for π-p → π0n around the Δ(1232) resonance and test of the charge independence principle

  • Jenefsky R
  • Joseph C
  • Tran M
 et al. 
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Abstract

Differential cross sections for the charge-exchange reaction of π-on protons in the region of the Δ(1232) resonance (128 MeV ≦ Tπ-≦ 246 MeV) are reported. Measurements were performed by detecting the neutron with a time-of-flight technique. The neutron counter efficiency was measured over the entire energy range. Particular care was devoted to eliminating possible sources of systematic error. Statistical errors are of the order of 4%, total errors of the order of 7%. The experimental results are in fair agreement with the most recent phase-shift analysis. Our data satisfy the triangle inequality. An analysis based on recent phase-shift values does not favour violation of charge independence. © 1977.

Author-supplied keywords

  • Nuclear reactions

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