Exclusive photodisintegration of {sup 3}He with polarized photons
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- Physics Department, Rensselaer Polytechnic Institute, Troy, New York, 12180 (United States)
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
- Istituto Nazionale di Fisica Nucleare-Laboratori Nazionali di Frascati, Frascati (Italy)
- INFN and University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome (Italy)
- Department of Physics, University of South Carolina, Columbia, South Carolina 29208 (United States)
- School of Physics and Astronomy, Tel-Aviv University, 69978 Tel-Aviv (Israel)
- Physics Department, University of Virginia, Charlottesville, Virginia 22903 (United States)
- DAPNIA/SPhN CE-Saclay, 91191 Gif-sur-Yvette, Cedex (France)
- Institute of Physics, Academia Sinica, Taipei (Taiwan, Province of China)
The first measurement of exclusive photodisintegration of {sup 3}He with polarized photons is reported. Cross sections and asymmetries for {sup 3}He({gamma},{ital pn}){ital p} and {sup 3}He({gamma},{ital pp}){ital n} at 235{le}{ital E}{sub {gamma}}{le}305 MeV, and fixed proton emission angle {theta}{sub {ital P}1}=100{degree}, are compared to a theoretical calculation which includes one-, two-, and three-nucleon photon absorption. Two-nucleon absorption dominates the {ital pn} data, but is suppressed in the {ital pp} data. Both the {ital pn} and {ital pp} data require the inclusion of three-nucleon absorption to describe the cross section and beam asymmetry over all momenta. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.
- Research Organization:
- Brookhaven National Laboratory
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 244490
- Report Number(s):
- CONF-9405132--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 334; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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