Phys. Rev. Lett. 76, 2029–2032 (1996)First Observation of the Scissors Mode in a γ-Soft Nucleus: The Case of 196PtReceived 13 November 1995; published in the issue dated 18 March 1996 A nuclear resonance fluorescence experiment with one of the newly developed highly efficient EUROBALL cluster detectors has been performed on the γ-soft nucleus 196Pt. Magnetic dipole excitations were observed between 2 and 3.5 MeV excitation energy. They are interpreted as the main fragments of the scissors mode based on the measured excitation strengths and branching ratios. A strong γ decay, which we believe to be an E2 decay of the scissors mode to the 21+ state, is observed. It allows an extraction of the effective boson quadrupole charges in the interacting boson model. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.76.2029
DOI:
10.1103/PhysRevLett.76.2029
PACS:
25.20.Dc, 21.60.Fw, 23.20.Js, 27.80.+w
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