Author/Authors :
M. Lipoglavsek، نويسنده , , D. Seweryniak، نويسنده , , C.N. Davids، نويسنده , , C. Fahlander، نويسنده , , M. Gorska، نويسنده , , R.V.F. Janssens، نويسنده , , J. Nyberg، نويسنده , , J. Uusitalo، نويسنده , , W.B. Walters، نويسنده , , I. Ahmad، نويسنده , , J. Blomqvist، نويسنده , , M.P. Carpenter، نويسنده , , J.A. Cizewski، نويسنده , , S.M. Fischer، نويسنده , , H. Grawe، نويسنده , , G. Hackman، نويسنده , , M. Huhta، نويسنده , , C.J. Lister، نويسنده , , D. Nisius، نويسنده , , G. Poli، نويسنده , , et al.، نويسنده ,
Abstract :
The nucleus 102Sn, which is the lightest Sn isotope with known excited states, was investigated with the 50Cr(58Ni,α2n) reaction using delayed in-beam γ-ray and conversion-electron spectroscopy. The experimental setup was designed to study the decay of μs-long isomeric states by placing γ-ray and electron detectors behind the focal plane of the Fragment Mass Analyzer at the Argonne National Laboratory. A 44 keV conversion-electron line corresponding to the (6+)→(4+) transition in 102Sn was identified and a half-life of 0.62+0.43−0.19 μs was measured for the (6+) state. From the available experimental information neutron effective charges from 1.6 to 2.3 e were deduced, based on the comparison with different shell-model calculations.
