Parity assignments to strong dipole excitations of $^{92}\mathrm{Zr}$ and $^{96}\mathrm{Mo}$

Parity assignments to strong dipole excitations of ${}^{92}{Zr}$ and ${}^{96}{Mo}$

C. Fransen, N. Pietralla, A. P. Tonchev, M. W. Ahmed, J. Chen, G. Feldman, U. Kneissl, J. Li, V. N. Litvinenko, B. Perdue, I. V. Pinayev, H. H. Pitz, R. Prior, K. Sabourov, M. Spraker, W. Tornow, H. R. Weller, V. Werner, Y. K. Wu, and S. W. Yates

Phys. Rev. C 70, 044317 – Published 29 October 2004

Abstract

Parity quantum numbers for dipole-excited states of the nuclei ${}^{92}{Zr}$ and ${}^{96}{Mo}$ have been determined from azimuthal asymmetries of nuclear resonance fluorescence intensities induced with the linearly polarized photon beam of the $HI γ S$ 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.

Received 19 May 2004

DOI:https://doi.org/10.1103/PhysRevC.70.044317

Authors & Affiliations

C. Fransen¹, N. Pietralla^1,2, A. P. Tonchev³, M. W. Ahmed³, J. Chen⁴, G. Feldman^3,4, U. Kneissl⁵, J. Li⁶, V. N. Litvinenko^6,*, 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

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

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Vol. 70, Iss. 4 — October 2004

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Physical Review C

covering nuclear physics

Parity assignments to strong dipole excitations of ${}^{92}{Zr}$ and ${}^{96}{Mo}$

C. Fransen, N. Pietralla, A. P. Tonchev, M. W. Ahmed, J. Chen, G. Feldman, U. Kneissl, J. Li, V. N. Litvinenko, B. Perdue, I. V. Pinayev, H. H. Pitz, R. Prior, K. Sabourov, M. Spraker, W. Tornow, H. R. Weller, V. Werner, Y. K. Wu, and S. W. Yates

Phys. Rev. C 70, 044317 – Published 29 October 2004

Abstract

Authors & Affiliations

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Physical Review C

covering nuclear physics

Parity assignments to strong dipole excitations of Zr92 and Mo96

C. Fransen, N. Pietralla, A. P. Tonchev, M. W. Ahmed, J. Chen, G. Feldman, U. Kneissl, J. Li, V. N. Litvinenko, B. Perdue, I. V. Pinayev, H. H. Pitz, R. Prior, K. Sabourov, M. Spraker, W. Tornow, H. R. Weller, V. Werner, Y. K. Wu, and S. W. Yates

Phys. Rev. C 70, 044317 – Published 29 October 2004

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Parity assignments to strong dipole excitations of ${}^{92}{Zr}$ and ${}^{96}{Mo}$