Spectroscopy of the proton drip-line nucleus Fr-203 - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review C Year : 2013

Spectroscopy of the proton drip-line nucleus Fr-203

U. Jakobsson
  • Function : Author
S. Juutinen
  • Function : Author
J. Uusitalo
  • Function : Author
M. Leino
  • Function : Author
K. Auranen
  • Function : Author
T. Enqvist
  • Function : Author
P. T. Greenlees
  • Function : Author
K. Hauschild
P. Jones
  • Function : Author
R. Julin
  • Function : Author
S. Ketelhut
  • Function : Author
P. Kuusiniemi
  • Function : Author
M. Nyman
  • Function : Author
P. Peura
  • Function : Author
P. Rahkila
  • Function : Author
P. Ruotsalainen
J. Saren
  • Function : Author
C. Scholey
  • Function : Author
J. Sorri
  • Function : Author

Abstract

The nucleus Fr-203 has been studied through gamma-ray and electron spectroscopy, using the recoil-decay tagging technique. A 13/2(+) state, with a half-life of 0.37(5) mu s, has been observed in Fr-203. Both the alpha-decay branch and the internal de-excitation of the 1/2(+) isomer in Fr-203 have been studied. Furthermore, the corresponding 1/2(+) state, with a half-life of 0.31(8) s, has been found in At-199. In addition, transitions feeding the 9/2(-) ground state of Fr-203 have been identified. The observed level pattern suggests that the ground state is still spherical.

Dates and versions

in2p3-00852165 , version 1 (20-08-2013)

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U. Jakobsson, S. Juutinen, J. Uusitalo, M. Leino, K. Auranen, et al.. Spectroscopy of the proton drip-line nucleus Fr-203. Physical Review C, 2013, 87, pp.054320. ⟨10.1103/PhysRevC.87.054320⟩. ⟨in2p3-00852165⟩
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