Neutral pion photoproduction on deuterium far from quasifree kinematics
Journal Article
·
· Bulletin of the American Physical Society
OSTI ID:243526
- Brookhaven National Lab., Upton, NY (United States); and others
The BNL LEGS tagged photon facility was used to measure cross sections and asymmetries for D({gamma}, pn) {pi} at large spectator neutron momenta. Polarized photons of energies 190 {le} E{sub {gamma}} {le} 320 MeV impinged upon an LD{sub 2} target. Protons were detected from 20 {degrees} {le} {theta}{sub p} {le} 160{degrees} with a threshold of 45 MeV. The angular coverage for the neutrons was 20 {degrees} {le} {theta}{sub n} {le} 140 {degrees} with a threshold of 5 MeV. The results were compared with a cascade calculation including NN and {pi}N final state interactions. The calculation is in good accord with the data over large kinematic regions but fails to explain the strength seen in some regions of phase space. This may indicate the influence of {Delta}N rescattering.
- OSTI ID:
- 243526
- Report Number(s):
- CONF-9304297--
- Journal Information:
- Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
- Country of Publication:
- United States
- Language:
- English
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