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Experimental Study of the Double Charge Exchange Reaction pi+ Isotope He-4 --> pi- 4 p Between 1.5-GeV/c and 2.0-GeV/c

Authors
  • Gaille, F.
  • Mureramanzi, S.
  • Bogdanski, M.
  • Jeanneret, J.-B.
  • Jeannet, E.
  • Perrin, D.
Publication Date
Jan 01, 1977
Identifiers
DOI: 10.1007/BF02776667
OAI: oai:inspirehep.net:4449
Source
INSPIRE-HEP
Keywords
License
Unknown
External links

Abstract

The double charge exchange reaction24He(π+,π−)4p has been studied with helium bubble chamber pictures at 1.46, 1.72 and 1.86 GeV/c incident momenta. Results are presented about crosssections, momentum spectra, angular and effective-mass distributions. The main features observed in this reaction are the low rate of events involving two spectator protons, the quasi-isotropic angular distribution of the negative pion and the abundant Δ(1232) and Δ(1670) resonance production.

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