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Phys. Rev. C 70, 044317 (2004) [8 pages]

Parity assignments to strong dipole excitations of 92Zr and 96Mo

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C. Fransen1, N. Pietralla1,2, A. P. Tonchev3, M. W. Ahmed3, J. Chen4, G. Feldman3,4, U. Kneissl5, J. Li6, V. N. Litvinenko6,*, B. Perdue3, I. V. Pinayev6, H. H. Pitz5, R. Prior7, K. Sabourov3, M. Spraker7, W. Tornow3, H. R. Weller3, V. Werner1, Y. K. Wu6, and S. W. Yates8
1Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany
2Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800, USA
3Triangle Universities Nuclear Laboratory, Duke University, Durham, North Carolina 27708, USA
4Department of Physics, George Washington University, Washington, DC 20052, USA
5Institut für Strahlenphysik, Universität Stuttgart, 70569 Stuttgart, Germany
6Duke Free Electron Laser Laboratory, Duke University, Durham, North Carolina 27708, USA
7North Georgia College & State University, Danlonega, Georgia 30597, USA
8Departments of Chemistry and Physics & Astronomy, University of Kentucky, Lexington, Kentucky 40606-0055, USA

Received 19 May 2004; published 29 October 2004

Parity quantum numbers for dipole-excited states of the nuclei 92Zr and 96Mo have been determined from azimuthal asymmetries of nuclear resonance fluorescence intensities induced with the linearly polarized photon beam of the HIγS facility at Duke University. This parity information is crucial for an interpretation of the investigated J=1 states as two-phonon excitations originating from inhomogeneous phonon coupling.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.70.044317
DOI:
10.1103/PhysRevC.70.044317
PACS:
21.10.Hw, 21.10.Re, 25.20.Dc, 41.60.Cr

*Present address: Brookhaven National Laboratory, Upton, NY 11973-5000, USA.

 
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