Rotational and Intrinsic Levels inTm169andLu175

Atomic-Beam Investigations of Electronic and Nuclear Ground States in the Rare-Earth Region

“…21 For the state of the one-hundred-first neutron, [52131/2 has been assigned. 34 Since for both of these states 12 equals A-2, the spin of Tm 170 is expected to be 12^+Ori, 28 which agrees with the measured value 1=1.…”

“…The agreement with the beta decay is seen to be uniform. [22][23][24][25][26][27][28][29][30] The spin assignments of Nd 147 , Pr 142 , and Sm 153 are discussed elsewhere and will not be considered here. 88 to 90 neutrons.…”

Multipole mixing ratios of transitions in175Lu populated from the decay of175Hf

“…Also, there are some questions as to the values of the mixing ratios previously determined. For the 343 keV transition absolute values of the multipole mixing ratios are in disagreement [9][10][11][12][13]. Reported E2 admixture ranges from 0 ~o [10] to about 10 ~o [ 11].…”

“…For the 343 keV transition absolute values of the multipole mixing ratios are in disagreement [9][10][11][12][13]. Reported E2 admixture ranges from 0 ~o [10] to about 10 ~o [ 11]. Internal conversion measurements for the 343 keV transition, hindered by a factor of ,,~ 700 with respect to the single particle estimate, are complicated by the possible presence of penetration effects [12,13].…”

Upper and Lower Bound of the Eigenvalue of a Three-Body System

“…To test the usefulness of this type of trial function, calculations have been made to determine the binding energy of a two-body system with a square-well potential containing a hard core 1 and to find the energy of the 31 5o state in Li 6 . 2 In the former case, an upper bound of -3.92 MeV is obtained, which is to be compared with the eigenvalue of -4.13 MeV. The fact that there is still a comparatively large difference of 0.21 MeV between the upper bound and the eigenvalue arises as a consequence of the choice of a square well as the shape of the twobody potential.…”