Search results for "relativistic projectile fragmentation"

showing 3 items of 3 documents

Study of isomeric states in $^{198,200,202,206}$Pb and $^{206}$Hg populated in fragmentation reactions

2018

International audience; Isomeric states in isotopes in the vicinity of doubly-magic 208Pb were populatedfollowing reactions of a relativistic 208Pb primary beam impinging on a9Be fragmentation target. Secondary beams of 198,200,202,206Pb and 206Hg wereisotopically separated and implanted in a passive stopper positioned in thefocal plane of the GSI Fragment Separator. Delayed γ rays were detected withthe Advanced Gamma Tracking Array (AGATA). Decay schemes were reevaluatedand interpreted with shell-model calculations. The momentumdependentpopulation of isomeric states in the two-nucleon hole nuclei206Pb/206Hg was found to differ from the population of multi neutron-holeisomeric states in 198…

Nuclear and High Energy Physicsisomeric decaysAstrophysics::High Energy Astrophysical PhenomenaPopulationNuclear Theory[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesFragmentation (mass spectrometry)Subatomic Physics0103 physical sciencesGamma spectroscopyGamma-ray spectroscopy010306 general physicseducationNuclear ExperimentPhysicseducation.field_of_studyIsotope010308 nuclear & particles physicsNuclear shell modeldirect reactionsrelativistic projectile fragmentationelectromagnetic transitionsnuclear shell modelAGATAPreSPEC-AGATAAtomic physicsBeam (structure)
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'beta'-decay studies of neutron-rich 'TL', 'PB', and 'BI' isotopes

2014

The fragmentation of relativistic uranium projectiles has been exploited at the Gesellschaft fur Schwerionenforschung laboratory to investigate the β decay of neutron-rich nuclei just beyond 208Pb. This paper reports on β-delayed γ decays of 211-213Tl, 215Pb, and 215-219Bi de-exciting states in the daughters 211-213Pb, 215Bi, and 215-219Po. The resulting partial level schemes, proposed with the help of systematics and shell-model calculations, are presented. The role of allowed Gamow-Teller and first-forbidden β transitions in this mass region is discussed. © 2014 American Physical Society.

PhysicsNuclear and High Energy PhysicsIsotopeSHELL modelchemistry.chemical_elementUraniumBeta decayrelativistic projectile fragmentationRISING spectrometerIonizing radiationNuclear physicschemistrySPINDouble beta decaySubatomic Physicsr-processNeutronbeta decayAtomic physics
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Lifetime measurement of neutron-rich even-even molybdenum isotopes

2017

D. Ralet et al. -- 11 pags., 10 figs., 3 tabs.

chemistry.chemical_element[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]7. Clean energy01 natural sciencesNuclear physicsSubatomic Physics0103 physical sciencesNeutronddc:530010306 general physicsMass numberPhysicsIsotope010308 nuclear & particles physicsrelativistic projectile fragmentation3. Good healthsecondary fragmentationgamma-ray spectroscopychemistryMolybdenumExcited stateQuadrupoleFísica nuclearAGATAAtomic physicsEnergy (signal processing)
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