First observation of the scissors mode in a {ital {gamma}}-soft nucleus: The case of {sup 196}Pt

Journal Article · Fri Mar 01 00:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.2029· OSTI ID:284434

von Brentano, P; Eberth, J; Enders, J; Esser, L; Herzberg, R; 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; Wiedenhoever, I; Winter, G; Zilges, A ^[1]

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1. Institut fuer Kernphysik, Universitaet zu Koeln, D-50937 Koeln (Germany)

A nuclear resonance fluorescence experiment with one of the newly developed highly efficient EUROBALL cluster detectors has been performed on the {gamma}-soft nucleus {sup 196}Pt. 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 {gamma} decay, which we believe to be an {ital E}2 decay of the scissors mode to the 2{sup +}{sub 1} state, is observed. It allows an extraction of the effective boson quadrupole charges in the interacting boson model. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 284434
• Journal Information: Physical Review Letters, Vol. 76, Issue 12; Other Information: PBD: Mar 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
PLATINUM 196
EXCITATION
FLUORESCENCE
MAGNETIC DIPOLES
NUCLEAR FRAGMENTS
GAMMA DECAY
E2-TRANSITIONS
QUADRUPOLES
INTERACTING BOSON MODEL
BRANCHING RATIO