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Pavel Golubev

Pavel Golubev

Senior lecturer

Pavel Golubev

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

Author

  • Pavel Golubev
  • Vladimir Avdeichikov
  • Kevin Fissum
  • Bo Jakobsson
  • I A Pshenichnov
  • W J Briscoe
  • G V O O’Rielly
  • J Annand
  • Kurt Hansen
  • Lennart Isaksson
  • H Jäderström
  • Martin Karlsson
  • Magnus Lundin
  • Bent Schröder
  • L Westerberg

Summary, in English

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.

Department/s

  • Nuclear physics
  • MAX IV Laboratory

Publishing year

2008

Language

English

Pages

216-229

Publication/Series

Nuclear Physics, Section A

Volume

806

Issue

1-4

Document type

Journal article

Publisher

Elsevier

Topic

  • Natural Sciences
  • Subatomic Physics
  • Physical Sciences

Keywords

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

Status

Published

Project

  • Production of Mesons with Electromagnetic Beams

Research group

  • Hadronic Reactions

ISBN/ISSN/Other

  • ISSN: 0375-9474