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Pion Emission in H-2,C-12,Al-27(gamma,pi+) Reactions at Threshold

Författare:
Publiceringsår: 2008
Språk: Engelska
Sidor: 216-229
Publikation/Tidskrift/Serie: Nuclear Physics A
Volym: 806
Nummer: 1-4
Dokumenttyp: Artikel
Förlag: Elsevier

Sammanfattning

The very first data from MAX-lab in Lund, Sweden on pion photoproduction at threshold energies are presented. The decrease of the total π+ yield in γ+12C, 27Al reactions below 200 MeV as well as the dσ/dΩ cross-section data essentially follow the predictions of an intranuclear-cascade model with an attractive potential for the pion–nucleus interaction. However, View the MathML source, cross-section data at 176 MeV show deviations which call for refinements of the model and possibly also for the inclusion of coherent pion-production mechanisms.

Disputation

Nyckelord

  • Physics and Astronomy
  • Nuclear reactions
  • 2H
  • 12C
  • 27Al(γ
  • π+X)
  • E=176 MeV
  • measured
  • σ
  • σ(θ
  • E)
  • Comparison with other data
  • intranuclear cascade model

Övriga

Published
Yes
  • Hadronic Reactions
  • ISSN: 0375-9474

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