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Author Zhao, Q. ♦ Burleson, G. ♦ Blanchard, S. ♦ Chang, T. ♦ Gibbs, W. ♦ Haas, J. ♦ Park, B. ♦ Whitton, M. ♦ Espy, M. ♦ Dehnhard, D. ♦ Larson, B. ♦ ODonnell, J. ♦ Palarczyk, M. ♦ Cummings, W. ♦ Delheij, P. ♦ Haeusser, O. ♦ Pasyuk, E. ♦ Gostkin, M. ♦ Amann, J. ♦ Boudrie, R. ♦ Riedel, C. ♦ Morris, C. ♦ Pentillae, S. ♦ Swenson, D. ♦ Tupa, D. ♦ Comfort, J. ♦ Gaulard, C. ♦ Maeda, K. ♦ Glass, G. ♦ Supek, I.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ ATOMIC NUMBER ♦ PION MINUS REACTIONS ♦ CHARGE EXCHANGE ♦ MESON SPECTROSCOPY ♦ ENERGY LOSSES ♦ TIME-OF-FLIGHT METHOD ♦ POLARIZATION ♦ ASYMMETRY ♦ SPIN ♦ PIONS NEUTRAL ♦ DIFFERENTIAL CROSS SECTIONS
Abstract Asymmetries for the ({pi}{sup {minus}},{pi}{sup 0}) reaction on polarized {sup 3}He were measured using a 200-MeV pion beam at LAMPF. The {pi}{sup 0}{close_quote}s were detected with the neutral meson spectrometer in coincidence with the recoiling tritons. A recoil triton detector, consisting of scintillation-counter telescopes and a wire chamber, was used to measure the time-of-flight, energy loss, and direction of the tritons. The polarized gaseous {sup 3}He target, developed at TRIUMF, was modified to run with two diode lasers; the polarization reached 65{percent}. The asymmetries between {theta}{sub lab}=60{degree} and 105{degree} were found to be strongly angle dependent. The results are compared with theoretical calculations. {copyright} {ital 1999} {ital The American Physical Society}
ISSN 05562813
Educational Use Research
Learning Resource Type Article
Publisher Date 1999-08-01
Publisher Place United States
Journal Physical Review, C
Volume Number 60
Issue Number 2


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