Low-energy pion double charge exchange on Ca isotopes

Z. Weinfeld, E. Piasetzky, H. W. Baer, R. L. Burman, M. J. Leitch, C. L. Morris, D. H. Wright, S. H. Rokni, J. R. Comfort

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Differential cross sections for the double-isobaric-analog-state transition in the 42,44Ca(+,-) reactions were measured at an incident energy of 35 MeV and 40 degrees. The Ca42 cross section (2.0±0.5 b/sr) is nearly as large as those of the lighter T=1 nuclei and only slightly smaller than that previously measured for Ca48 (2.4±0.7 b/sr). The cross section for Ca44 (1.1±0.3 b/sr) is half of this amount. These results are surprising when compared with simple expectations and point to the importance of the nonanalog route contribution at low energies.

Original languageEnglish (US)
Pages (from-to)902-905
Number of pages4
JournalPhysical Review C
Volume37
Issue number2
DOIs
StatePublished - Jan 1 1988

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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