Low-energy Coulomb excitation of $^{62}$Fe and $^{62}$Mn following in-beam decay of $^{62}$Mn

Abstract : Sub-barrier Coulomb excitation was performed on a mixed beam of 62Mn and 62Fe, following in-trap β−decay of 62Mn at REX-ISOLDE, CERN. The trapping and charge breeding times were varied in order to alter the composition of the beam, which was measured by means of an ionisation chamber at the zero-angle position of the Miniball array. A new transition was observed at 418 keV, which has been tentatively associated to a (2+, 3+) → 1+ g.s. transition. This fixes the relative positions of the β-decaying 4+ and 1+ states in 62Mn for the first time. Population of the 2+1 state was observed in 62Fe and the crosssection determined by normalisation to the 109Ag target excitation, confirming the B(E2) value measured in recoil-distance lifetime experiments.
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Submitted on : Tuesday, November 17, 2015 - 2:19:58 PM
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L. P. Gaffney, J. van de Walle, B. Bastin, V. Bildstein, A. Blazhev, et al.. Low-energy Coulomb excitation of $^{62}$Fe and $^{62}$Mn following in-beam decay of $^{62}$Mn. European Physical Journal A, EDP Sciences, 2015, 51 (10), ⟨10.1140/epja/i2015-15136-6⟩. ⟨in2p3-01229915⟩

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