The {ital d}{searrow}{ital p}{r_arrow}{sup 3}He{pi}{sup 0} reaction near threshold
- Service de Physique Nucleaire, CEA Saclay, F-91191 Gif-sur-Yvette, France Laboratoire National Saturne, F-91191 Gif-sur-Yvette, France St. Petersburg Nuclear Physics Institute, 188350 Gatchina, Russia Department of Physics, University of California, Los Angeles, California 90095 Joint Institute for Nuclear Research, Dubna, Russia TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3 University College London, London WC1E 6BT (United Kingdom)
Angular distributions for the differential cross section and three deuteron analyzing powers {ital iT}{sub 11}, {ital T}{sub 20}, and {ital T}{sub 22} of the reaction {ital d}{searrow}{ital p}{r_arrow}{sup 3}He{pi}{sup 0} have been measured over the whole angular domain at 20 energies close to threshold (0.03{lt}{ital T}{sub {pi}}{sup c.m.}{lt}10.2 MeV). The differential cross section and tensor analyzing power {ital T}{sub 20} both show strong variation in energy and angle due to interference between {ital S}- and {ital P}-wave pion production, whereas {ital iT}{sub 11} and {ital T}{sub 22} remain consistent with zero over the whole experimental range. All the data at different energies and angles fall on universal curves when plotted as functions of the single variable {ital p}{sub {pi}}cos{Theta}, evaluated in the c.m. The broad features of the results are in line with theoretical expectations. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 385818
- Journal Information:
- Physical Review, C, Vol. 54, Issue 4; Other Information: PBD: Oct 1996
- Country of Publication:
- United States
- Language:
- English
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