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Author Kolb, N. R. ♦ Feldman, G. ♦ ORielly, G. V. ♦ Pywell, R. E. ♦ Skopik, D. M. ♦ Hackett, E. D. ♦ Quraan, M. A. ♦ Rodning, N. L.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ HELIUM 3 TARGET ♦ PHOTONUCLEAR REACTIONS ♦ CROSS SECTIONS ♦ THREE-NUCLEON TRANSFER REACTIONS ♦ PHOTONS ♦ DELTA BARYONS ♦ ABSORPTION ♦ PROTONS ♦ NEUTRONS
Abstract Cross sections have been measured for the {sup 3}He({gamma},{ital pp}){ital n} reaction with tagged photons in the range {ital E}{sub {gamma}} =161{endash}208 MeV using the Saskatchewan-Alberta Large Acceptance Detector (SALAD). The protons were detected over a range of polar angles of 40{degree}{endash}140{degree} and azimuthal angles of 0{degree}{endash}360{degree} with an energy threshold of 40 MeV. Comparisons are made with a microscopic calculation which includes one-, two-, and three-nucleon absorption mechanisms. One- and two-nucleon processes, including final-state interactions, are unable to account for the measured cross sections. The addition of three-nucleon absorption diagrams gives roughly the right strength, but the distribution in phase space is in disagreement with the data. {copyright} {ital 1996 The American Physical Society.}
ISSN 05562813
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-11-01
Publisher Place United States
Journal Physical Review, C
Volume Number 54
Issue Number 5


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