He4 , Be10 , C14 , and O16 light-fragment-accompanied cold ternary fission of the Cm250 isotope in an equatorial three-cluster model

2017 ◽  
Vol 96 (5) ◽  
Author(s):  
M. R. Pahlavani ◽  
O. N. Ghodsi ◽  
M. Zadehrafi
Keyword(s):  
Cluster Model ◽  
Ternary Fission ◽  
Light Fragment

scholarly journals RELATIVE MOTION CORRECTION TO FISSION BARRIERS

2008 ◽  
Vol 17 (01) ◽  
pp. 151-159 ◽  
Author(s):  
J. SKALSKI
Keyword(s):  
Relative Motion ◽  
Cluster Model ◽  
Motion Correction ◽  
Mean Field Theory ◽  
Mean Field ◽  
Ternary Fission ◽  
Skyrme Interaction ◽  
Hartree Fock ◽  
Fission Barriers ◽  
The Mean

We discuss the effect of kinetic energy of the relative motion becoming spurious for separate fragments on the selfconsistent mean-field fission barriers. The treatment of the relative motion in the cluster model is contrasted with the necessity of a simpler and approximate approach in the mean-field theory. A scheme of the energy correction to the Hartree-Fock is proposed. The results obtained with the effective Skyrme interaction SLy 6 show that the correction, previously estimated as ~ 8 MeV in A = 70 - 100 nuclei, amounts to 4 MeV in the medium heavy nucleus 198 Hg and to null in 238 U . However, the corrected barrier implies a shorter fission half-life of the latter nucleus. The same effect is expected to lower barriers for multipartition (i.e. ternary fission, etc) and make hyperdeformed minima less stable.

Cold (Neutronless) Alpha Ternary Fission of 252Cf: Theory and Comparison with Experiment

1998 ◽  
Vol 07 (05) ◽  
pp. 625-638 ◽  
Author(s):  
A. Sandulescu ◽  
A. Florescu ◽  
F. Carstoiu ◽  
A. V. Ramayya ◽  
J. H. Hamilton ◽  
...  
Keyword(s):  
Alpha Particle ◽  
Nucleon Nucleon ◽  
Ternary Fission ◽  
Light Fragment ◽  
Folding Potential ◽  
Comparison With Experiment ◽  
Particle Form ◽  
Double Folding ◽  
Double Folding Potential ◽  
Neck Radius

A new phenomenon is studied: the cold (neutronless) ternary α-accompanied fragmentation of 252Cf. The corresponding isotopic yields were calculated as the ratio of the penetrability of a given fragmentation over the sum of penetrabilities of all possible (neutronless) α-ternary fragmentations. No preformation factors were considered. We considered that close to the scission configuration the nucleons of the alpha particle form a small neck. At a given value of the neck radius a double scission takes place and a third light fragment is formed between the two heavier fragments. The corresponding barriers between the light and heavy fragment and between the alpha particle and the two heavier fragments were evaluated by using a double folding potential generated by M3Y nucleon-nucleon forces and realistic fragment ground state deformations. The relative calculated isotopic yields greater than 2 × 10-3 have been observed experimentally for the partners with known spectra. We predict that fragmentations with unknown light partners 105,106Zr, 109,110Mo and 114Ru to be identified in the present data.

Radioactivities by light fragment (C, Ne, Mg) emission

1989 ◽  
Vol 14 (3) ◽  
pp. 311-345 ◽  
Author(s):  
E. Hourani ◽  
M. Hussonnois ◽  
D.N. Poenaru
Keyword(s):  
Light Fragment

3d-4s and 3d-4p electronic transitions in M2+ : NaF AND M2+ : KMgF3 (Μ = V, Cr, and Mn). Results of a cluster-model calculation

1987 ◽  
Vol 84 ◽  
pp. 855-861 ◽  
Author(s):  
M. Flórez ◽  
M. Bermejo ◽  
V. Luaña ◽  
E. Francisco ◽  
J.M. Recio ◽  
...  
Keyword(s):  
Model Calculation ◽  
Cluster Model ◽  
Electronic Transitions

Theoretical Study of the Binding of the Thiol-Containing Cysteine Amino Acid to the Silver Surface Using a Cluster Model

2021 ◽  
Vol 125 (16) ◽  
pp. 3244-3256
Author(s):  
Pham Vu Nhat ◽  
Nguyen Thanh Si ◽  
Nguyen Thanh Tien ◽  
Minh Tho Nguyen
Keyword(s):  
Amino Acid ◽  
Cluster Model ◽  
Theoretical Study ◽  
Silver Surface ◽  
Cysteine Amino Acid

Inclusion of the (T) triples correction into the linear-r12 corrected coupled-cluster model CCSD(R12)

2006 ◽  
Vol 106 (11) ◽  
pp. 2306-2317 ◽  
Author(s):  
Heike Fliegl ◽  
Christof Hättig ◽  
Wim Klopper
Keyword(s):  
Cluster Model ◽  
Coupled Cluster

The orthogonal valence bond interpretation of ab initio chemisorption cluster model wavefunctions

1993 ◽  
Vol 177 (1) ◽  
pp. 61-67 ◽  
Author(s):  
A. Clotet ◽  
J.M. Ricart ◽  
J. Rubio ◽  
F. Illas
Keyword(s):  
Ab Initio ◽  
Cluster Model ◽  
Valence Bond
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