Isospin dependence of pion absorption by nucleon pairs in the He isotopes

H. Toki, H. Sarafian

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We calculate the relative absorption ratio of a pion by T = 0 and T = 1 nucleon pairs in the He isotopes measured recently by Ashery et al. Standard theory based on Δ-isobar intermediate excitations agrees with the experimental observation that for energies around the resonance, pion absorption by a T = 1 nucleon pair is strongly suppressed.

Original languageEnglish (US)
Pages (from-to)285-288
Number of pages4
JournalPhysics Letters B
Issue number4-6
Publication statusPublished - Jan 1 1982


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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