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Journal Articles Physical Review C Year : 2013

Beta-decay of Mn-65 to Fe-65

B. Olaizola
  • Function : Author
L. M. Fraile
  • Function : Author
H. Mach
  • Function : Author
A. Aprahamian
  • Function : Author
J. A. Briz
  • Function : Author
J. Cal-Gonzalez
  • Function : Author
D. Ghita
  • Function : Author
W. Kurcewicz
  • Function : Author
S. R. Lesher
  • Function : Author
D. Pauwels
  • Function : Author
E. Picado
  • Function : Author
A. Poves
D. Radulov
  • Function : Author
J. M. Udias
  • Function : Author

Abstract

The low energy structure of Fe-65 has been studied by means of gamma- and fast-timing spectroscopy. A level scheme of Fe-65 populated following the beta-decay of Mn-65 was established for the first time. It includes 41 levels and 85 transitions. The excitation energy of the beta-decaying isomer in Fe-65 has been precisely determined at 393.7(2) keV. The beta delayed neutron emission branch was measured as Pn = 7.9(12)%, which cannot be reconciled with the previously reported value of 21.0(5)%. Four gamma-rays and four excited states in Fe-64 were identified as being populated following the beta-n decay. Four lifetimes and five lifetime limits in the subnanosecond range have been measured using the Advanced Time-Delayed Method. The level scheme is compared with shell-model calculations. Tentative spin and parity assignments are proposed based on the observed transition rates, the calculations and the systematics of the region.

Dates and versions

in2p3-00855155 , version 1 (29-08-2013)

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Cite

B. Olaizola, L. M. Fraile, H. Mach, A. Aprahamian, J. A. Briz, et al.. Beta-decay of Mn-65 to Fe-65. Physical Review C, 2013, 88, pp.044306. ⟨10.1103/PhysRevC.88.044306⟩. ⟨in2p3-00855155⟩
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