https://doi.org/10.1051/epjconf/202329002011
Fission decay modes of 254Fm* compound nucleus formed in 16O+238U reaction
1 Department of Physics, Faculty of Science, University of Zagreb, Bijenicˇka c. 32, 10000 Zagreb, Croatia
2 School of Physics and Materials Science, Thapar Institute of Engineering and Technology, 147004 Patiala, Punjab, India
* Corresponding author: akaur.phy@pmf.hr
Published online: 8 December 2023
The quantum mechanical fragmentation theory (QMFT) based dynamical cluster-decay model (DCM) is applied to analyze the probable fission decay modes of 254Fm* compound nucleus produced in 16O+238U nuclear reaction at excitation energy EC*N =45.9 MeV. The fission valley of collective fragmentation potential and the multi-humped peaks of preformation probability P0 profile are analyzed by considering compact as well as elongated configurations of quadrupole (β2) deformed fragments. The competitive emergence of different symmetric [symmetric superlong (SL), symmetric supershort (SS)] and asymmetric [standard 1 (S1), standard 2 (S2), standard 3 (S3)] fission modes have been observed for the case of elongated configuration. The division of mass and charge in nuclear fission of 254Fm* depicts the importance of spherical and deformed magic shell closures. The most energetic light (AL and heavy (AH) decay fragments of aforementioned fission modes are identified. Moreover, the DCM-calculated fission cross-sections (σ fission) show reasonable agreement with the experimental measurements [24].
© The Authors, published by EDP Sciences, 2023
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