Pion double-charge-exchange reaction on Ca44 at 50 MeV

H. W. Baer, M. J. Leitch, C. S. Mishra, Z. Weinfeld, E. Piasetzky, J. R. Comfort, J. Tinsley, D. H. Wright

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Angular distributions of pion double-charge-exchange (DCX) reactions at 50 MeV are reported for the ground-state (g.s.) and the double-isobaric-analog- state (DIAS) transitions on Ca44. These distributions have similar shapes and magnitudes and are considerably more forward peaked than those of the lighter T=1 nuclei. The spectra at forward angles exhibit nearly exclusive excitation of the g.s. and DIAS. By using a formulation based on the shell model, the magnitude of the scattering amplitude B associated with nonanalog intermediate state transitions is extracted from the data.

Original languageEnglish (US)
Pages (from-to)1458-1461
Number of pages4
JournalPhysical Review C
Volume43
Issue number3
DOIs
StatePublished - Jan 1 1991

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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