A. Florescu

Cold (neutronless)αternary fission of252Cf

The phenomenon of cold (neutronless) alpha ternary fission in spontaneous fission of {sup 252}Cf was experimentally observed by triple gamma coincidence technique with Gammasphere with 72 gamma-ray detectors. Correlated pairs of {sub 36}Kr-{sub 60}Nd, {sub 38}Sr-{sub 58}Ce, {sub 40}Zr-{sub 56}Ba, {sub 42}Mo-{sub 54}Xe, {sub 44}Ru-{sub 52}Te, and {sub 46}Pd-{sub 50}Sn were observed to be associated with {alpha} ternary fission of {sup 252}Cf. Yields of cold {alpha} ternary fission were extracted. {copyright} {ital 1998} {ital The American Physical Society}

Role of the higher static deformations of fragments in the cold binary fission of252Cf

We study the binary cold fission of

Cold fission as emission of fragments

^{252}

Neutronless -accompanied ternary fission of

Cf in the frame of a cluster model where the fragments are born to their respective ground states and interact via a double-folded potential with deformation effects taken into account up to multipolarity

Mass and charge yield calculations for cold fragmentation of actinide nuclei

\lambda=4

The cold fission of

. The preformation factors were neglected. In the case when the fragments are assumed to be spherical or with ground state quadrupole deformation, the

Cold alpha-accompanied fission of

Q

Fragment angular momentum and descent dynamics in 252Cf spontaneous fission

-value principle dictates the occurence of a narrow region around the double magic

Cold (neutronless) {alpha} ternary fission of {sup 252}Cf

^{132}

Cold (neutronless) alpha ternary fission of Cf-252

Sn, like in the case of cluster radioactivity. When the hexadecupole deformation is turned on, an entire mass-region of cold fission in the range 138 - 156 for the heavy fragment arise, in agreement with the experimental observations. This fact suggests that in the above mentioned mass-region, contrary to the usual cluster radioactivity where the daughter nucleus is always a neutron/proton (or both) closed shell or nearly closed shell spherical nucleus, the clusterization mechanism seems to be strongly influenced by the hexadecupole deformations rather than the