Pionic fission cross sections on lithium

P. D. Barnes, B. Bassalleck, R. A. Eisenstein, G. Franklin, R. Grace, C. Maher, P. Pile, R. Rieder, J. Szymanski, W. R. Wharton, J. R. Comfort, F. Takeutchi, J. F. Amann, S. Dytman, K. G R Doss

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New 6,7Li(π+, 3He) 3,4 He differential cross sections are combined with earlier data to study the reaction's energy dependence between threshold and Tπ = 60 MeV. The cross sections for the 7Li(π+, 3He'3He)n and 7Li(π+, 3He3He)p reactions, in which the nucleon is nearly at rest, are also measured and found to have magnitudes similar to the 6Li(π+,3He)3He cross section. The 3He3H + p channel has a factor of 4(±2) higher yield than the 3He3He + n channel. The results are examined in terms of two different models for the reaction mechanism.

Original languageEnglish (US)
Pages (from-to)397-410
Number of pages14
JournalNuclear Physics, Section A
Issue number3
Publication statusPublished - Jul 4 1983

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Barnes, P. D., Bassalleck, B., Eisenstein, R. A., Franklin, G., Grace, R., Maher, C., ... Doss, K. G. R. (1983). Pionic fission cross sections on lithium. Nuclear Physics, Section A, 402(3), 397-410. https://doi.org/10.1016/0375-9474(83)90210-5