First Observation of the Scissors Mode in a Gamma-Soft Nucleus: The Case of 196Pt

Brentano, P. von; Eberth, J.; Enders, J.; Esser, L.; Herzberg, R.-D.; Huxel, N.; Meise, H.; Neumann-Cosel, P. von; Nicolay, N.; Pietralla, N.; Prade, Harald; Reif, Jens; Richter, A.; Schlegel, C.; Schwengner, Ronald; Skoda, Siegrun; Thomas, H. G.; Wiedenhöver, I.; Winter, Georg; Zilges, A.

doi:10.1103/PhysRevLett.76.2029

First Observation of the Scissors Mode in a Gamma-Soft Nucleus: The Case of 196Pt

von Brentano, P.; Eberth, J.; Enders, J.; Esser, L.; Herzberg, R.-D.; Huxel, N.; Meise, H.; von Neumann-Cosel, P.; Nicolay, N.; Pietralla, N.; Prade, H.; Reif, J.; Richter, A.; Schlegel, C.; Schwengner, R.; Skoda, S.; Thomas, H. G.; Wiedenhöver, I.; Winter, G.; Zilges, A.

A nuclear resonance fluorescence experiment with one of the newly developed
highly efficient EUROBALL cluster detectors has been performed on the gamma-soft
nucleus ¹⁹⁶Pt. Magnetic dipole excitations were observed between
2 and 3.5 MeV excitation energiy. They are interpreted as the main fragments
of the scissors mode based on the measured excitation strengths and branching
ratios. A strong gamma 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.

Physical Review Letters 76 (1996) 12 pp. 2029-32
DOI: 10.1103/PhysRevLett.76.2029
Cited 82 times in Scopus

Permalink: https://www.hzdr.de/publications/Publ-595