Parity measurements of nuclear levels using a free-electron-laser generated gamma-ray beam.


Journal Article

The quality and intensity of gamma rays at the High Intensity gamma-ray Source are shown to make nuclear resonance fluorescence studies possible at a new level of precision and efficiency. First experiments have been carried out using an intense (10(7) gamma/s) beam of 100% linearly polarized, nearly monoenergetic, gamma rays on the semimagic nucleus (138)Ba. Negative parity quantum numbers have been assigned to 18 dipole excitations of (138)Ba between 5.5 MeV and 6.5 MeV from azimuthal gamma-intensity asymmetries.

Full Text

Duke Authors

Cited Authors

  • Pietralla, N; Berant, Z; Litvinenko, VN; Hartman, S; Mikhailov, FF; Pinayev, IV; Swift, G; Ahmed, MW; Kelley, JH; Nelson, SO; Prior, R; Sabourov, K; Tonchev, AP; Weller, HR

Published Date

  • January 2002

Published In

Volume / Issue

  • 88 / 1

Start / End Page

  • 012502 -

PubMed ID

  • 11800940

Pubmed Central ID

  • 11800940

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.88.012502


  • eng