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Related Experiment Videos

Evidence for the wobbling mode in nuclei.

S W Odegård1, G B Hagemann, D R Jensen

  • 1The Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen Ø, Denmark.

Physical Review Letters
|June 21, 2001
PubMed
Summary

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Researchers studied the nucleus 163Lu using a fusion-evaporation reaction. They found evidence for a wobbling mode in excited triaxial, strongly deformed bands, linked to nuclear triaxiality.

Area of Science:

  • Nuclear Physics
  • Atomic Physics

Background:

  • Investigating nuclear structures provides insights into fundamental forces.
  • Triaxial, strongly deformed (TSD) bands are exotic nuclear states.

Purpose of the Study:

  • To study electromagnetic properties of transitions between TSD bands in 163Lu.
  • To identify and characterize complex excitation modes in deformed nuclei.

Main Methods:

  • Fusion-evaporation reaction: 139La + 29Si at 152 MeV.
  • Analysis of electromagnetic properties of gamma-ray transitions.
  • Comparison with theoretical calculations of coupled particle-rotor models.

Main Results:

  • Identified connecting transitions between two TSD bands in 163Lu.

Related Experiment Videos

  • Presented evidence for an excited TSD band as a wobbling mode.
  • The wobbling mode is built upon the yrast TSD band.

    • Conclusions:

    • The observed excited TSD band is assigned as a wobbling mode.
    • This finding supports the unique relationship between wobbling motion and nuclear triaxiality.
    • The study advances the understanding of exotic shapes and excitation modes in atomic nuclei.