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Discovery of the proton emitting nucleus 159Re

Joss, DT, Darby, IG, Page, RD, Uusitalo, J, Eeckhaudt, S, Grahn, T, Greenlees, PT, Jones, PM, Julin, R, Juutinen, S , Ketelhut, S, Leino, M, Leppänen, AP, Nyman, M, Pakarinen, J, Rahkila, P, Sarén, J, Scholey, C, Steer, AN, Al-Khalili, JS, Cannon, AJ, Stevenson, PD, Ertürk, S, Gall, B, Hadinia, B, Venhart, M and Simpson, J (2007) Discovery of the proton emitting nucleus 159Re AIP Conference Proceedings, 961. pp. 28-33.

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The observation of the new nuclide 159Re provides important insights into the evolution of single-particle structure in heavy nuclei beyond the proton drip line. The nuclide 159Re was synthesised in the reaction 106Cd(58Ni, 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 (Ep = 1805±20 keV) and decay half-life (t1/2 = 21±4 μs) with values calculated using the WKB method indicate that the proton is emitted from an h11/2 state. The implications of these results for future experimental investigations into even more proton unbound Re isotopes using in-flight separation techniques are considered. © 2007 American Institute of Physics.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Joss, DT
Darby, IG
Page, RD
Uusitalo, J
Eeckhaudt, S
Grahn, T
Greenlees, PT
Jones, PM
Julin, R
Juutinen, S
Ketelhut, S
Leino, M
Leppänen, AP
Nyman, M
Pakarinen, J
Rahkila, P
Sarén, J
Scholey, C
Steer, AN
Cannon, AJ
Ertürk, S
Gall, B
Hadinia, B
Venhart, M
Simpson, J
Date : 1 December 2007
DOI : 10.1063/1.2827272
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 11:17
Last Modified : 24 Jan 2020 20:38

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