Nuclear Data Sheets for A = 97

High-spin states inNb96,97

“…1; intensities of the transitions obtained in Experiment I are quoted. This is the first observation of highspin states in this nucleus, whereas previous information [1] on the structure of 97 Nb was obtained from particle transfer reactions and the β decay of 97 Zr. Eighteen new transitions and 15 new states are included in the level scheme establishing excitations up to ∼6.6-MeV excitation energy.…”

“…The limited spectroscopic information that exists for this nucleus is summarized in Ref. [1] and comes from particle pick-up reactions and the β decay of 97 Zr. Only low-spin states (spin lower than the 9/2 + ground state) are known.…”

Experimental study of the rearrangements of valence protons and neutrons amongst single-particle orbits during double- β decay in Mo100

“…For many of the states populated in the residual odd nuclei, angular-momentum quantum numbers have already been determined in a variety of previous studies that are summarized in Refs. [49][50][51][52]. Overall more than 85% of the transfer strength used in the sum-rule analysis from which the occupancies are extracted (as described below) is associated with states that have a previously determined assignment.…”

“…This is consistent with an overall picture of lowlying = 4 strength associated with the valence g 7/2 orbital, but the presence of the deeper lying g 9/2 state at higher excitation. Indeed, below 2 MeV, all the states with spectroscopic strengths larger than 0.4 have been assigned as J π = 7/2 + in the literature [49][50][51], although some weak 9/2 + states are also present in the same energy region. States whose spins are known to be 9/2 + are indicated by an asterisk in Fig.…”

New lifetime measurements inPd109and the onset of deformation atN=60

“…Note that the groundstate spins and parities for the Pd isotopes in this mass range are all 5/2 + . Of particular interest from a nuclear structure standpoint are the 7/2 + states which appear in pairs at relatively low energies systematically across the Pd isotope chain [21][22][23][24][25][26][27][28][29][30] and seem to display two distinct structures. Other levels of interest are the lowest 7/2 − , which is the only negative-parity state strongly populated in the β decay of 109 Rh, and the 5/2 + 2 state, which has a dominant β-feeding intensity systematically across the Pd isotopic chain [21,[25][26][27][28][29][30].…”