The 12C and 208Pb(p,2He) reactions at 390.6 MeV and the deeply bound pionic states

N. Matsuoka, Tetsuo Noro, K. Tamura, M. Yoshimura, M. Yosoi, A. Okihana, T. Yoshimura

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1 Citation (Scopus)


The spectra for the 12C and 208Pb(p,2He) reactions near the threshold for free π- production have been measured at 0° with a 390.6 MeV proton beam. The spectrum for 12C shows no signature of pionic bound states, and is explained to be composed of a flat continuum and the contribution of the quasi-free π- production process. For 208Pb, the spectrum shows contributions from π- bound states in addition to the quasi-free process. Preliminary results of the cross sections are obtained for the elementary processes of pion production in the (p,2He) reaction.

Original languageEnglish
Pages (from-to)299-307
Number of pages9
JournalHyperfine Interactions
Issue number1-4
Publication statusPublished - Dec 1 1996

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


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