Isobaric analog states in pion single-charge-exchange reactions on and above the (3,3) resonance energy

U. Sennhauser, E. Piasetzky, H. W. Baer, J. D. Bowman, M. D. Cooper, H. S. Matis, H. J. Ziock, J. Alster, A. Erell, M. A. Moinester, F. Irom

Research output: Contribution to journalArticlepeer-review

Abstract

The 0°differential cross sections of (π+, π0) reactions on a series of nuclei to isobaric analog states were determined at 165, 230, and 295 MeV. For each energy, the A dependence is well described by a power law of the form σ=g(E)(N-Z)A-α(E), where α(E) is a decreasing function of energy. The 0°excitation functions peak around the (3,3) resonance energy for all nuclei except Zr90. A possible explanation in terms of neutron and proton densities is discussed.

Original languageEnglish
Pages (from-to)1324-1327
Number of pages4
JournalPhysical Review Letters
Volume51
Issue number15
DOIs
StatePublished - 1983

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