0000000000789119

AUTHOR

A Illana

showing 4 related works from this author

First beta-decay spectroscopy of In-135 and new beta-decay branches of In-134

2021

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Evolution of Octupole Deformation in Radium Nuclei from Coulomb Excitation of Radioactive $^{222}$Ra and $^{228}$Ra Beams

2020

There is sparse direct experimental evidence that atomic nuclei can exhibit stable pear shapes arising from strong octupole correlations. In order to investigate the nature of octupole collectivity in radium isotopes, electric octupole ($E3$) matrix elements have been determined for transitions in $^{222,228}$Ra nuclei using the method of sub-barrier, multi-step Coulomb excitation. Beams of the radioactive radium isotopes were provided by the HIE-ISOLDE facility at CERN. The observed pattern of $E$3 matrix elements for different nuclear transitions is explained by describing $^{222}$Ra as pear-shaped with stable octupole deformation, while $^{228}$Ra behaves like an octupole vibrator.

Nuclear TheoryAtomic Physics (physics.atom-ph)Nuclear TheoryFOS: Physical sciencesnuclear structure and decaysPhysics - Atomic PhysicsNuclear Theory (nucl-th)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)electromagnetic transitionsPhysics::Accelerator Physicscollective levelsPhysics::Atomic PhysicsNuclear Experiment (nucl-ex)ydinfysiikkaNuclear ExperimentNuclear Experiment
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The observation of vibrating pear-shapes in radon nuclei (vol 10, 2473, 2019)

2020

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New beta-decaying state in Bi-214

2021

13 pags., 7 figs., 3 tabs.

PhysicsScience & Technology010308 nuclear & particles physicsPhysicsState (functional analysis)01 natural sciencesISOLDE3. Good healthPhysics NuclearNUCLEAR-DATA SHEETSQuantum mechanics0103 physical sciencesPhysical SciencesSHELL-MODELFísica nuclear010306 general physics
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