Asymmetry measurement of pion elastic scattering from polarized C13 in the energy region of the P33 resonance

Yi Fen Yen, B. Brinkmöller, D. Dehnhard, S. M. Sterbenz, Yi Ju Yu, Brian Berman, G. R. Burleson, K. Cranston, A. Klein, G. S. Kyle, Ricardo Alarcon, T. Averett, J. R. Comfort, J. J. Görgen, Barry Ritchie, J. R. Tinsley, M. Barlett, G. W. Hoffmann, K. Johnson, C. F. MooreM. Purcell, H. Ward, A. Williams, J. A. Faucett, S. J. Greene, J. J. Jarmer, J. A. McGill, C. L. Morris, S. Penttilä, N. Tanaka, H. T. Fortune, E. Insko, R. Ivie, J. M. Odonnell, D. Smith, M. A. Khandaker, S. Chakravarti

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24 Scopus citations

Abstract

Analyzing powers Ay were measured for + and - elastic scattering from polarized C13 at energies near the P33 resonance. At T=132 MeV the values of Ay are significantly different from zero for -. For + at 132 MeV and for both - and + at all other energies, the Ay are mostly consistent with zero. These data differ from the predictions of present pion-nucleus reaction theories, especially at large momentum transfers.

Original languageEnglish (US)
Pages (from-to)1959-1962
Number of pages4
JournalPhysical Review Letters
Volume66
Issue number15
DOIs
StatePublished - 1991

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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