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E2 decay strength of the M1 scissors mode of ^{156}Gd and its first excited rotational state.

Publication ,  Journal Article
Beck, T; Beller, J; Pietralla, N; Bhike, M; Birkhan, J; Derya, V; Gayer, U; Hennig, A; Isaak, J; Löher, B; Ponomarev, VY; Richter, A ...
Published in: Physical review letters
May 2017

The E2/M1 multipole mixing ratio δ_{1→2} of the 1_{sc}^{+}→2_{1}^{+} γ-ray decay in ^{156}Gd and hence the isovector E2 transition rate of the scissors mode of a well-deformed rotational nucleus has been measured for the first time. It has been obtained from the angular distribution of an artificial quasimonochromatic linearly polarized γ-ray beam of energy 3.07(6) MeV scattered inelastically off an isotopically highly enriched ^{156}Gd target. The data yield first direct support for the deformation dependence of effective proton and neutron quadrupole boson charges in the framework of algebraic nuclear models. First evidence for a low-lying J^{π}=2^{+} member of the rotational band of states on top of the 1^{+} band head is obtained, too, indicating a significant signature splitting in the K=1 scissors mode rotational band.

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Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

May 2017

Volume

118

Issue

21

Start / End Page

212502

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

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Beck, T., Beller, J., Pietralla, N., Bhike, M., Birkhan, J., Derya, V., … Zweidinger, M. (2017). E2 decay strength of the M1 scissors mode of ^{156}Gd and its first excited rotational state. Physical Review Letters, 118(21), 212502. https://doi.org/10.1103/physrevlett.118.212502
Beck, T., J. Beller, N. Pietralla, M. Bhike, J. Birkhan, V. Derya, U. Gayer, et al. “E2 decay strength of the M1 scissors mode of ^{156}Gd and its first excited rotational state.Physical Review Letters 118, no. 21 (May 2017): 212502. https://doi.org/10.1103/physrevlett.118.212502.
Beck T, Beller J, Pietralla N, Bhike M, Birkhan J, Derya V, et al. E2 decay strength of the M1 scissors mode of ^{156}Gd and its first excited rotational state. Physical review letters. 2017 May;118(21):212502.
Beck, T., et al. “E2 decay strength of the M1 scissors mode of ^{156}Gd and its first excited rotational state.Physical Review Letters, vol. 118, no. 21, May 2017, p. 212502. Epmc, doi:10.1103/physrevlett.118.212502.
Beck T, Beller J, Pietralla N, Bhike M, Birkhan J, Derya V, Gayer U, Hennig A, Isaak J, Löher B, Ponomarev VY, Richter A, Romig C, Savran D, Scheck M, Tornow W, Werner V, Zilges A, Zweidinger M. E2 decay strength of the M1 scissors mode of ^{156}Gd and its first excited rotational state. Physical review letters. 2017 May;118(21):212502.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

May 2017

Volume

118

Issue

21

Start / End Page

212502

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences