Missing dipole excitation strength below the particle threshold

Conference Paper

High sensitivity studies of E1 andM1 excitations fromthe 138Ba(γ,γ') reaction at energies close to the neutron emission threshold have been performed. The electric dipole character of the "pygmy" mode was experimentally verified for excitations from 5.5-8.5 MeV. Missing dipole strength has been reveal in our photon-scattering measurements.

Duke Authors

Cited Authors

  • Tonchev, AP; Angell, C; Boswell, M; Howell, CR; Karwowski, HJ; Kelley, JH; Tornow, W; Tsoneva, N

Published Date

  • January 1, 2007

Published In

Volume / Issue

  • 44 /

Electronic International Standard Serial Number (EISSN)

  • 1824-8039

Citation Source

  • Scopus