Cluster radioactivity with effects of deformations and orientations of nuclei included

Journal Article · Tue Sep 15 04:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.034317· OSTI ID:21293828

Arun, Sham K; Gupta, Raj K; Kanwar, Shefali; Singh, BirBikram; Sharma, Manoj K ^[1]

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1. Department of Physics, Panjab University, Chandigarh 160 014 (India)

Based on the preformed cluster model (PCM) of Gupta and collaborators, we have extended our recent study on ground-state cluster decays to parent nuclei resulting in daughters other than spherical {sup 208}Pb, i.e., to deformed daughters, and the very new cases of {sup 14}C and {sup 15}N decays of {sup 223}Ac, and {sup 34}Si decay of {sup 238}U, taking nuclei as spherical, quadrupole deformed ({beta}{sub 2}) alone, and with higher multipole deformations up to hexadecapole ({beta}{sub 2}, {beta}{sub 3}, {beta}{sub 4}) together with the 'optimum' orientations of cold decay process. Except for {sup 14}C decays of {sup 221}Fr, {sup 221-224,226}Ra, and {sup 225}Ac where higher multipole deformations up to {beta}{sub 4} are found essential, the quadrupole deformation {beta}{sub 2} alone is found good enough to fit the experimental data. Because the PCM treats the cluster-decay process as the tunneling of a preformed cluster, the deformations and orientations of nuclei modify both the preformation probability P{sub 0} and tunneling probability P, and hence the decay half-life, considerably.

• OSTI ID: 21293828
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIUM 223
ACTINIUM 225
CARBON 14 TARGET
CLUSTER MODEL
DEFORMED NUCLEI
FRANCIUM 221
GROUND STATES
HALF-LIFE
LEAD 208
NITROGEN 15 TARGET
NUCLEAR DECAY
PROBABILITY
RADIOACTIVITY
RADIUM 221
RADIUM 222
RADIUM 223
RADIUM 224
RADIUM 226
SILICON 34
SPHERICAL CONFIGURATION
TUNNEL EFFECT
URANIUM 238