Measurements of quasi-elastic pion single charge exchange on 3He at Tπ = 245 MeV

M. L. Dowell, S. Gilad, E. Piasetzky, S. Høibråten, H. W. Baer, E. J. Beise, J. D. Bowman, G. W. Dodson, F. Irom, J. N. Knudson, G. S. Kyle, M. J. Leitch, L. D. Pham, R. P. Redwine, S. H. Rokni, L. C. Smith, D. R. Tieger, S. A. Wood

Research output: Contribution to journalArticlepeer-review


Differential cross sections from 3He(π±, π0) and 3He(π±, π0p) measurements are presented. The π0 energy spectra from 3He(π±, π0) and 3He(π+, π0p) are characteristic of quasi-free reactions. The proton angular distribution from 3He(π+, π0p) also show evidence of a quasi-free mechanism. Indications of multi-nucleon processes are presented in the 3He(π-, π0p) data. At least two nucleons must be involved. Comparisons between coincidence and single-arm measurements from this work and previous measurements of charged pion scattering on 3He provide evidence of an enhanced multiple scattering contribution to the charge exchange channel.

Original languageEnglish
Pages (from-to)91-97
Number of pages7
JournalPhysics Letters B
Issue number1-4
StatePublished - 26 Jan 1995


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