Nuclear Compton scattering from 12C and bound-nucleon polarizabilities
Abstract
Compton scattering cross sections from 12C have been measured at scattering angles of θγ=35°-150° using tagged photons of Eγ=84-105 MeV. Attempts to extract nucleon polarizabilities from the data were hampered by model ambiguities. These included uncertainties in the strength of the electric quadrupole and quasideuteron total photon absorption channels, and in the parametrizations of meson-exchange effects and nuclear form factors. These ambiguities led to large variations in the extracted values of the effective polarizabilities of the bound nucleon. Inelastic Compton scattering cross sections from the 4.44 MeV first-excited state were also obtained.
- Publication:
-
Physical Review C
- Pub Date:
- July 2001
- DOI:
- 10.1103/PhysRevC.64.014603
- Bibcode:
- 2001PhRvC..64a4603W
- Keywords:
-
- 25.20.Dc;
- 13.40.Em;
- 13.60.Fz;
- 14.20.Dh;
- Photon absorption and scattering;
- Electric and magnetic moments;
- Elastic and Compton scattering;
- Protons and neutrons