Electromagnetic properties of levels in 55Mn

Energy Levels in55Mn. II. Mean Lifetimes and Spins of Bound States

“…The 1528keV level. The mixing ratio of the ground state transition measured in this work, 6 = -0.20 k 0.06, is in good agreement with the values -0.15 f and -0.19 f 0.05, obtained bv Hichwa et al [3] and Kulkarni [21], respectively.…”

“…The spin 312 was uniquely determined from the angular distribution of the r + 2253 keV transition in the decay of the 1836 keV resonance state. The adopted value of the mixing ratio of the ground state transition is 0.00 k 0.01, in excellent agreement with 6 = 0.0 f 0.3, obtained by Hichwa et al [3].…”

“…The angular distribution of the ground state transition is almost isotropic. which also was observed by Hichwa et al [ 3 ] .…”

“…Kulkarni [21] gives the value A 2 = -0.047 f O.OO$. The mixing ratio 6 = -0.16 f 0.01 for the spin sequence 7 ' 2 -512 is consistent with the values 6 = [3] and Kulkarni [21], respectively. As a result, we conclude that the spin of the 1885 keV is 7/2.…”

“…A comprehensive collection of earlier measurements can be found in Nuclear Data Sheets [2]. The most extensive measurements have been performed by Hichwa et al [3,4] using the 52Cr(a,py)55Mn reaction, by van der Merwe et al [5] and Haupt et al [6] using the 55Mn(p,p'y)55Mn reaction and by Correia et al [7] using the "Mn(n, n'y)''Mn reaction.…”