Ultrasensitive search for long-lived superheavy nuclides in the mass range A = 288 to A = 300 in natural Pt, Pb, and Bi

Ultrasensitive search for long-lived superheavy nuclides in the mass range A = 288 to A = 300 in natural Pt, Pb, and Bi

Theoretical models of superheavy elements (SHEs) predict a region of increased stability around the proton and neutron shell closures of Z = 114 and N = 184. Therefore a sensitive search for nuclides in the mass range from A = 288 to A = 300 was performed in natural platinum, lead, and bismuth, cove...

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Veröffentlicht in:Physical review. C, Nuclear physics Nuclear physics, 2011-06, Vol.83 (6), Article 065806
Hauptverfasser: Dellinger, F., Forstner, O., Golser, R., Priller, A., Steier, P., Wallner, A., Winkler, G., Kutschera, W.
Format: Artikel
Sprache:eng
Schlagworte:
ACCELERATORS
ACTINIDES
BARYONS
BISMUTH
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
GOLD
HADRONS
HALF-LIFE
ISOTOPES
LEAD
MASS
MASS SPECTROSCOPY
METALS
NEUTRONS
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEONS
PLATINUM
PLATINUM METALS
PROTONS
SENSITIVITY
SIMULATION
SPECTROSCOPY
STABILITY
THORIUM
TRANSACTINIDE ELEMENTS
TRANSITION ELEMENTS
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
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Zusammenfassung:Theoretical models of superheavy elements (SHEs) predict a region of increased stability around the proton and neutron shell closures of Z = 114 and N = 184. Therefore a sensitive search for nuclides in the mass range from A = 288 to A = 300 was performed in natural platinum, lead, and bismuth, covering long-lived isotopes of Eka-Pt (Ds, Z = 110), Eka-Pb (Z = 114), and Eka-Bi (Z = 115). Measurements with accelerator mass spectrometry (AMS) at the Vienna Environmental Research Accelerator (VERA) established upper limits for these SHE isotopes in Pt, Pb, and Bi with abundances of
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.83.065806