Compton Scattering from \nuc{6}{Li} at 86 MeV

Authors:
  • LML. S. Myers
    L. S. Myers
  • MAM. W. Ahmed
    M. W. Ahmed
  • GFG. Feldman
    G. Feldman
  • AKA. Kafkarkou
    A. Kafkarkou
  • DKD. P. Kendellen
    D. P. Kendellen
  • IMI. Mazumdar
    I. Mazumdar
  • JMJ. M. Mueller
    J. M. Mueller
  • MSM. H. Sikora
    M. H. Sikora
  • HWH. R. Weller
    H. R. Weller
  • WZW. R. Zimmerman
    W. R. Zimmerman

Abstract
Cross sections for \nuc{6}{Li}($\gamma$,$\gamma$)\nuc{6}{Li} have been measured at the High Intensity Gamma-Ray Source (\HIGS) and the sensitivity of these cross sections to the nucleon isoscalar polarizabilities was studied. Data were collected using a quasi-monoenergetic 86 MeV photon beam at photon scattering angles of 40$^{\circ}$--160$^{\circ}$. These results are an extension of a previous measurement at a lower energy. The earlier work indicated that the \nuc{6}{Li}($\gamma$,$\gamma$)\nuc{6}{Li} reaction at 60 MeV provides a means of extracting the nucleon polarizabilities; this work demonstrates that the sensitivity of the cross section to the polarizabilities is increased at 86 MeV. A full theoretical treatment is needed to verify this conclusion and produce values of the polarizabilities.