Analyzing Powers and Partial Wave Decomposition of pnpp(1S0)π at Low Energies

H. Hahn, F. A. Duncan, J. Aclander, D. Ashery, E. G. Auld, D. R. Gill, D. A. Hutcheon, G. Jones, E. Korkmaz, S. Maytal-Beck, M. A. Moinester, J. A. Niskanen, D. Ottewell, A. Rahav, S. Ram, M. Sevior, P. L. Walden, and R. Weiss
Phys. Rev. Lett. 82, 2258 – Published 15 March 1999
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Abstract

Analyzing powers for pnpp(S01)π were measured at beam energies 353, 404, and 440 MeV by extracting the quasifree process from pdpppπ. Partial wave amplitude analysis yields a significant contribution from the isospin 1, s-wave channel. This contribution is relatively much larger than that expected from theoretical models which have been successful in describing the isospin 1, s-wave channel behavior of ppppπ0 cross sections at threshold.

  • Received 20 April 1998

DOI:https://doi.org/10.1103/PhysRevLett.82.2258

©1999 American Physical Society

Authors & Affiliations

H. Hahn1, F. A. Duncan2, J. Aclander1, D. Ashery1, E. G. Auld3, D. R. Gill4, D. A. Hutcheon4, G. Jones3, E. Korkmaz5, S. Maytal-Beck1, M. A. Moinester1, J. A. Niskanen6, D. Ottewell4, A. Rahav4, S. Ram4, M. Sevior7, P. L. Walden4, and R. Weiss1

  • 1Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics and Astronomy, Tel-Aviv University, 69978 Ramat Aviv, Israel
  • 2Department of Physics, Queen's University, Kingston, Ontario, Canada, K7L 3N6
  • 3Department of Physics, University of British Columbia, Vancouver, British Columbia Canada V6T 1Z1
  • 4TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3
  • 5Department of Physics, University of Northern British Columbia, Prince George, British Columbia, Canada V2L 5P2
  • 6Department of Physics, University of Helsinki, P.O. Box 9, FIN-00014 Helsinki, Finland
  • 7School of Physics, University of Melbourne, Parkville, Victoria, Australia 3052

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Vol. 82, Iss. 11 — 15 March 1999

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