Author:

Keywords:

Science & Technology, Physical Sciences, Physics, Nuclear, Physics, Particles & Fields, Physics, NUCLEAR-DATA SHEETS, LASER ION-SOURCE, MAGIC NUMBERS, BETA-DECAY, ISOTOPES, AG-109, N=40, SPECTROMETER, SPECTROSCOPY, DEFORMATION, nucl-ex, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, 5106 Nuclear and plasma physics, 5107 Particle and high energy physics, 5110 Synchrotrons and accelerators

Abstract:

Sub-barrier Coulomb excitation was performed on a mixed beam of 62Mn and 62Fe, following in-trap − 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 -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.