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Odd-odd deformed proton emitters.

L S Ferreira1, E Maglione

  • 1Centro de Física, Instituto Superior Tecnico, Lisbon, Portugal.

Physical Review Letters
|April 6, 2001
PubMed
Summary
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Proton decay from odd-odd deformed nuclei is solved using single particle Nilsson resonances. The neutron

Area of Science:

  • Nuclear Physics
  • Atomic and Molecular Physics
  • Quantum Mechanics

Background:

  • Proton decay from odd-odd deformed nuclei remains a significant unsolved problem in nuclear physics.
  • Understanding nuclear stability and decay modes is crucial for fundamental physics research.

Purpose of the Study:

  • To present the first exact solution for proton decay in odd-odd deformed nuclei.
  • To investigate the dependence of nuclear lifetime on single-particle energy levels.

Main Methods:

  • Utilized single particle Nilsson resonances for an exact theoretical solution.
  • Analyzed proton decay emitters including 112Cs, 140Ho, and 150Lu (ground and isomeric states).

Main Results:

  • Nuclear lifetime strongly correlates with the specific single-particle energy level occupied by the unpaired neutron.

Related Experiment Videos

  • Achieved excellent agreement with experimental data for various nuclear deformations.
  • Identified specific deformation ranges for 112Cs and 150Lu, and two possible ranges for 140Ho based on neutron single-particle levels.

    • Conclusions:

    • The study provides a definitive method for calculating proton decay in complex nuclei.
    • The findings enable precise assignment of Nilsson levels and offer insights into nuclear structure and stability.
    • This work resolves a long-standing problem and validates theoretical models against experimental observations.