Author/Authors :
S.N Liddick، نويسنده , , P.F. Mantica، نويسنده , , R.V.F. Janssens، نويسنده , , R. Broda، نويسنده , , B.A. Brown، نويسنده , , M.P. Carpenter، نويسنده , , B. Fornal، نويسنده , , A.C Morton، نويسنده , , W.F Mueller، نويسنده , , J. Pavan، نويسنده , , A. Stolz، نويسنده , , S.L. Tabor، نويسنده , , B.E. Tomlin، نويسنده , , M. Wiedeking، نويسنده ,
Abstract :
The β decay of neutron-rich nuclei in the π1f7/2 and νpf shells has been studied at the NSCL to track the development of new proposed shell closures at N=32 and 34 due to the monopole migration of the ν1f5/2 orbital. From a measurement of absolute γ-ray intensities following the β decay of odd-odd nuclei, the β-decay branching ratios to levels in the even-even daughters can be deduced. The branching ratios, especially to the 0+ daughter ground state, can be used to assign spins and parities to the parent ground states. The interpretation of these assignments for odd-odd nuclei in a single-particle limit can be used to track the migration of the ν1f5/2 single-particle state.
