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Study of collective dipole excitations below the giant dipole resonance at HIγS

Publication ,  Journal Article
Tonchev, AP; Angell, C; Boswell, M; Chyzh, A; Howell, CR; Karwowski, HJ; Kelley, JH; Tornow, W; Tsoneva, N; Wu, YK
Published in: AIP Conference Proceedings
April 4, 2007

The High-Intensity Gamma-ray Source utilizing intra-cavity back-scattering of free electron laser photons from relativistic electrons allows one to produce a unique beam of high-flux gamma rays with 100% polarization and selectable energy and energy resolution which is ideal for low-energy γ-ray scattering experiments. Nuclear resonance fluorescence experiments have been performed on N=82 nuclei. High sensitivity studies of E1 and M1 excitations at energies close to the neutron emission threshold have been performed. The method allows the determination of excitation energies, spin, parities, and decay branching ratios of the pygmy dipole mode of excitation. The observations are compared with calculations using statistical and quasi-particle random-phase approximations. © 2007 American Institute of Physics.

Duke Scholars

Published In

AIP Conference Proceedings

DOI

EISSN

1551-7616

ISSN

0094-243X

Publication Date

April 4, 2007

Volume

891

Start / End Page

339 / 347
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Tonchev, A. P., Angell, C., Boswell, M., Chyzh, A., Howell, C. R., Karwowski, H. J., … Wu, Y. K. (2007). Study of collective dipole excitations below the giant dipole resonance at HIγS. AIP Conference Proceedings, 891, 339–347. https://doi.org/10.1063/1.2713535
Tonchev, A. P., C. Angell, M. Boswell, A. Chyzh, C. R. Howell, H. J. Karwowski, J. H. Kelley, W. Tornow, N. Tsoneva, and Y. K. Wu. “Study of collective dipole excitations below the giant dipole resonance at HIγS.” AIP Conference Proceedings 891 (April 4, 2007): 339–47. https://doi.org/10.1063/1.2713535.
Tonchev AP, Angell C, Boswell M, Chyzh A, Howell CR, Karwowski HJ, et al. Study of collective dipole excitations below the giant dipole resonance at HIγS. AIP Conference Proceedings. 2007 Apr 4;891:339–47.
Tonchev, A. P., et al. “Study of collective dipole excitations below the giant dipole resonance at HIγS.” AIP Conference Proceedings, vol. 891, Apr. 2007, pp. 339–47. Scopus, doi:10.1063/1.2713535.
Tonchev AP, Angell C, Boswell M, Chyzh A, Howell CR, Karwowski HJ, Kelley JH, Tornow W, Tsoneva N, Wu YK. Study of collective dipole excitations below the giant dipole resonance at HIγS. AIP Conference Proceedings. 2007 Apr 4;891:339–347.

Published In

AIP Conference Proceedings

DOI

EISSN

1551-7616

ISSN

0094-243X

Publication Date

April 4, 2007

Volume

891

Start / End Page

339 / 347