Pion absorption in He4 above the delta resonance

L. C. Smith, R. C. Minehart, O. K. Baker, D. B. Day, K. L. Giovanetti, R. Lourie, R. M. Marshall, B. Milbrath, Barry Ritchie, R. M. Sealock, D. Tedeschi, S. T. Thornton

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The reaction He4 (+,pp)pn was measured at T=500 MeV. The angular distribution of quasifree two-body absorption which was obtained agrees in detail with the free dpp reaction and scales according to the number of T=0 pn pairs in He4. Possible evidence for pd final-state interactions is discussed. The extrapolated total cross section for four-body absorption is 2.50.6 mb, which is substantially less than predicted from a model based on excitation.

Original languageEnglish (US)
Pages (from-to)R485-R489
JournalPhysical Review C
Issue number2
StatePublished - Jan 1 1993

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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