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Discovery of the proton emitting nucleus $^{159}$Re

Abstract : The observation of the new nuclide ^{159}Re provides important insights into the evolution of single-particle structure in heavy nuclei beyond the proton drip line. The nuclide ^{159}Re was synthesised in the reaction ^{106}Cd(^{58}Ni,p4n) and identified via its proton radioactivity using the RITU gas-filled separator and the GREAT focal-plane spectrometer. Comparisons of the measured proton energy (E_p = 1805±20 keV) and decay half-life (t_{1/2} = 21±4 $\mu$s) with values calculated using the WKB method indicate that the proton is emitted from an h_{11/2} state. The implications of these results for future experimental investigations into even more proton unbound Re isotopes using in-flight separation techniques are considered.
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http://hal.in2p3.fr/in2p3-00195626
Contributor : Béatrice Forrler <>
Submitted on : Tuesday, December 11, 2007 - 11:37:22 AM
Last modification on : Friday, May 8, 2020 - 1:10:39 AM

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D.T. Joss, I.G. Darby, R.D. Page, J. Uusitalo, S. Eeckhaudt, et al.. Discovery of the proton emitting nucleus $^{159}$Re. PROTON EMITTING NUCLEI AND RELATED TOPICS: International Conference-PROCON 2007, Jun 2007, Lisbonne, Portugal. pp.28-33, ⟨10.1063/1.2827272⟩. ⟨in2p3-00195626⟩

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