Pion absorption on nuclei at 65 MeV

K. Nakayama, H. Yokota, K. Ichimaru, Y. Takahata, F. Suekane, R. Chiba, K. Nakai, I. Arai, H. En'yo, S. Sasaki, T. Nagae, M. Sekimoto

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Proton-proton and proton-neutron angular correlations as well as proton and deuteron inclusive spectra from pion absorption on C, Al, Cu, and Ta were measured at T=65 MeV. We compared the results with the prediction of the intranuclear cascade model, assuming that pion absorption proceeds only through two-nucleon absorption processes. The differential cross sections of the (+,p) and (+,pp) reactions were fairly well reproduced by the calculation in a wide angular range. Ratios R of the pion absorption cross section on a pn pair to that on a pp or nn pair, were in agreement between the inclusive and exclusive measurements for C and Al, but for Cu, the inclusive measurement gave a smaller R value. The internuclear cascade calculations for the (,pn) and (-,pp) reactions revealed the importance of the pion charge exchange process before absorption, even at T=65 MeV.

Original languageEnglish
Pages (from-to)1002-1011
Number of pages10
JournalPhysical Review C
Issue number3
Publication statusPublished - 1986
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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