^16O(γ,pp) and ^16O(γ,pn) Spin Asymmetry and Cross Section Measurements
Abstract
Cross sections and asymmetries have been measured for the ^16O(γ,pp), and ^16O(γ,pn) reactions with polarized photons with energies from 205 to 315 MeV using the LEGS facility at Brookhaven National Laboratory. Protons and neutrons were detected and identified in an Δ E-E array of plastic (Bicron 408) and CsI scintillators located 100 cm from a water target covering a broad range of angles above and below the beam line. The pp and pn cross section and asymmetry data are being analyzed in various kinematics including coplanar and symmetric and in quasi-deuteron kinematics (P_miss=0). The cross section and asymmetry data will be compared to recent calculations by the Pavia and Gent Groups, which include the effects of short range correlations, isobar currents, meson-exchange currents, and final state interactions.
- Publication:
-
APS April Meeting Abstracts
- Pub Date:
- April 1998
- Bibcode:
- 1998APS..APR.C2308G