C. J. Beyer

Observation of a vh{sub 11/2} pair alignment in neutron-rich {sup 118}Pd

The yrast band was significantly extended to 14{sup +} and the {gamma} band to 5{sup +} in neutron-rich {sup 118}Pd by measuring the {gamma}-{gamma}-{gamma} coincidences emitted from the spontaneous fission of {sup 252}Cf with Gammasphere. The first band crossing was observed in the yrast band in {sup 118}Pd at a frequency of {Dirac_h}{omega}{approx}0.36 MeV at the starting point of the backbending, which is similar to that found in {sup 112-116}Pd. The first bandbending in the yrast cascade in {sup 118}Pd is interpreted to be built on a two h{sub 11/2} neutron configuration based on its similarity to the yrast bands in even-even {sup 112-116}Pd. Our result indicates {sup 118}Pd still maintains a prolate shape. The quasineutron Routhian calculations indicate a lower crossing frequency for the h{sub 11/2} level.

Binary and ternary fission studies with 252Cf

Abstract The spontaneous fission of 252 Cf has been studied via γ  γ  γ coincidences and γ  γ-light charged particle coincidences with Gammasphere. The yields of correlated Mo-Ba pairs in binary fission with 0–10 neutron emission have been remeasured with an uncompressed γγγ coincidence data. The previous hot fission mode with 8–10 neutron emission seen in the Mo-Ba split is found to be smaller than earlier results but still present. New 0n binary SF yields are reported. By gating on the light charged particles detected in ΔE-E Si detectors and γγ coincidences with Gammasphere, the relative yields of correlated pairs in alpha ternary fission with zero to 6n emission are observed for the first time. A number of correlated pairs are identified in ternary fission with 10 Be as the LCP. We observed only cold, 0n 10 Be and little, if any, hot, xn 10 Be channel.

Identification of ν 9 / 2 [ 404 ] band in 97 Sr

An excited rotational band including seven new

Cold and hot binary and ternary fission yields in the spontaneous fission of 252Cf

\ensuremath{\gamma}

Possible octupole correlation in {sup 147}Pr and {pi}h{sub 11/2} bands in {sup 149,151}Pr

transitions was identified in

Identical and shifted identical bands

{}^{97}\mathrm{Sr}

5 He ternary fission yields of 252 Cf and 235 UÑn,fÖ

from

Identification of {sup 162}Gd and a new type of identical bands

\ensuremath{\gamma}\ensuremath{-}\ensuremath{\gamma}\ensuremath{-}\ensuremath{\gamma}

Identification of neutron h11/2 bands in 121,123Cd

coincidences in the spontaneous fission of

Binary and Ternary Fission Yields of 252Cf

{}^{252}\mathrm{Cf}.