Excitation-energy-dependent potential energy surfaces in the ternary breakup of 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Cf</mml:mi><mml:mprescripts /><mml:none /><mml:mn>252</mml:mn></mml:mmultiscripts></mml:math>

Karthikraj, C.; Zhang, Ren

doi:10.1103/physrevc.101.014603

Cited by 8 publications

(2 citation statements)

References 51 publications

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“…It is evident from the figure that the asymmetric fission distribution is obtained for the spherical and deformed choices of the decaying fragments. The experimental observations of [49] support the asymmetric mass distribution for the U(n , f) reaction; hence, our results agree with the experiment. Furthermore, in the experimental observation of the CCT [18,19] of the U(n , f) reaction,…”

Section: Th 236supporting

confidence: 90%

Sequential decay analysis of ²³⁵U(n^th, f ) reaction using fragmentation approach

Sharma,

Kaushik,

Sharma

2024

Chinese Phys. C

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Numerous experimental and theoretical observations conclude that the probability of the three fragment emission (ternary fission) or the binary fission increases when one proceeds towards the heavy mass region of nuclear periodic table. The collinear cluster tripartition (CCT) channel of $^{235}$U(n$^{th}$,f) reaction is studied and it was observed that the CCT may be a sequential process or a simultaneous emission phenomena. Till now, different approaches are introduced to study the CCT process as a simultaneous process or sequential process, but the decay dynamics of these modes is not fully explored. It will be of interest to identify the three fragments of the sequential process and to explore their related dynamics using some excitation energy dependent approach. Hence, in present work, an attempt is made to study the sequential decay mechanism of $^{235}$U(n$^{th}$,f) reaction using quantum mechanical fragmentation theory (QMFT). The decay mechanism is considered in two steps, where initially the nucleus splits into an asymmetric channel. In the second step, the heavy fragment obtained in the first step divides into two fragments. Stage I analysis is done by calculating the fragmentation potential and the preformation probability for the spherical and deformed choice of the decaying fragments. The most probable fragment combination of stage I are identified in view the dips in the fragmentation structure, and the corresponding maxima's of the preformation probability ($P_0$). The excitation energy of the decay channel is calculated using an iteration process. The obtained excitation energy of the identified heavy fragments is further used for the fragmentation analysis, and the subsequent binary fragments of the sequential process are obtained. The identified three fragments of the sequential process are in agreement with the experimental observation and are found nearby the neutron or proton shell closure. Finally, the kinetic energy of the observed fragments is calculated and the middle fragment of the CCT mechanism is identified.

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Section: Th 236supporting

confidence: 90%

Sequential decay analysis of ²³⁵U(n^th, f ) reaction using fragmentation approach

Sharma,

Kaushik,

Sharma

2024

Chinese Phys. C

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“…Using the two-dimensional minimization approach, Karthikraj et al [31] have studied the ternary fragmentation of 252 Cf at different excitation energies. Considering temperature and deformation dependent interaction potential, the ternary fragmentation probability is estimated as the product of nuclear level densities of the three fission fragments.…”

Section: Introductionmentioning

confidence: 99%

Pre-existence probability for the ternary fission of Cf isotopes

Kokila

Balasubramaniam

2020

J. Phys. G: Nucl. Part. Phys.

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The pre-existence probability for the spontaneous ternary breakup of neutron deficient to neutron rich parent nuclei of Cf isotopes from 242Cf to 256Cf with different third fragments such as 4He, and N = Z and N ≠ Z clusters like 12,14C, 16,20O, 20,24Ne, and 48,50Ca is studied here. A simple analytical formula is used to calculate the pre-existence probability. The ternary breakup combinations are computed by the charge minimization procedure. For 4He as the third fragment, the inclusion of deformation shifts the most probable distribution of 252Cf parent system from 132Sn to 140Xe which is as per the experimental observations. An enhancement in the relative yield is observed when the distance between the main fission fragment is reduced. In the spherical calculations for A 3 = 12C and 14C, the yield distribution is identical and the heavy group remains as 132Sn but for the deformed calculations with A 3 = 14C, the light group remains the same as 114Ru for neutron-rich parent nuclei. For O and Ne clusters, with the increase in neutron number of parent system, the asymmetric yield distribution changes to symmetric one. For heavier clusters, 48Ca and 50Ca, the favorable fragmentation is observed as Sn + Ni, which is in agreement with experimental predictions.

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Ternary fission of α -structured nuclei with 12≤A≤60 : A three-body decay approach

Karthikraj

Ren

2020

Phys. Rev. C

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Excitation-energy-dependent potential energy surfaces in the ternary breakup of Cf252

Cited by 8 publications

References 51 publications

Sequential decay analysis of ²³⁵U(n^th, f ) reaction using fragmentation approach

Sequential decay analysis of ²³⁵U(n^th, f ) reaction using fragmentation approach

Pre-existence probability for the ternary fission of Cf isotopes

Ternary fission of α -structured nuclei with 12≤A≤60 : A three-body decay approach

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Excitation-energy-dependent potential energy surfaces in the ternary breakup of Cf252

Cited by 8 publications

References 51 publications

Sequential decay analysis of 235U(nth, f ) reaction using fragmentation approach

Sequential decay analysis of 235U(nth, f ) reaction using fragmentation approach

Pre-existence probability for the ternary fission of Cf isotopes

Ternary fission of α -structured nuclei with 12≤A≤60 : A three-body decay approach

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Product

Resources

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Sequential decay analysis of ²³⁵U(n^th, f ) reaction using fragmentation approach

Sequential decay analysis of ²³⁵U(n^th, f ) reaction using fragmentation approach