Comparison of fission and quasi-fission modes

C. Simenel; P. McGlynn; A. S. Umar; K. Godbey

doi:10.1016/j.physletb.2021.136648

Comparison of fission and quasi-fission modes

C. Simenel^*
, P. McGlynn
, A. S. Umar
, K. Godbey

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

Quantum shell effects are known to affect the formation of fragments in nuclear fission. Shell effects also affect quasi-fission reactions occurring in heavy-ion collisions. Systematic time-dependent Hartree-Fock simulations of ⁵⁰Ca+¹⁷⁶Yb collisions show that the mass equilibration between the fragments in quasi-fission is stopped when they reach similar properties to those in the asymmetric fission mode of the ²²⁶Th compound nucleus. Similar shell effects are then expected to determine the final repartition of nucleons between the nascent fragments in both mechanisms. Future experimental studies that could test these observations are discussed.

Original language	English
Article number	136648
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	822
DOIs	https://doi.org/10.1016/j.physletb.2021.136648
Publication status	Published - 10 Nov 2021

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title = "Comparison of fission and quasi-fission modes",

abstract = "Quantum shell effects are known to affect the formation of fragments in nuclear fission. Shell effects also affect quasi-fission reactions occurring in heavy-ion collisions. Systematic time-dependent Hartree-Fock simulations of 50Ca+176Yb collisions show that the mass equilibration between the fragments in quasi-fission is stopped when they reach similar properties to those in the asymmetric fission mode of the 226Th compound nucleus. Similar shell effects are then expected to determine the final repartition of nucleons between the nascent fragments in both mechanisms. Future experimental studies that could test these observations are discussed.",

keywords = "Fission, Quasifission, TDHF",

author = "C. Simenel and P. McGlynn and Umar, \{A. S.\} and K. Godbey",

note = "Publisher Copyright: {\textcopyright} 2021 The Author(s)",

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doi = "10.1016/j.physletb.2021.136648",

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T1 - Comparison of fission and quasi-fission modes

AU - Simenel, C.

AU - McGlynn, P.

AU - Umar, A. S.

AU - Godbey, K.

PY - 2021/11/10

Y1 - 2021/11/10

N2 - Quantum shell effects are known to affect the formation of fragments in nuclear fission. Shell effects also affect quasi-fission reactions occurring in heavy-ion collisions. Systematic time-dependent Hartree-Fock simulations of 50Ca+176Yb collisions show that the mass equilibration between the fragments in quasi-fission is stopped when they reach similar properties to those in the asymmetric fission mode of the 226Th compound nucleus. Similar shell effects are then expected to determine the final repartition of nucleons between the nascent fragments in both mechanisms. Future experimental studies that could test these observations are discussed.

AB - Quantum shell effects are known to affect the formation of fragments in nuclear fission. Shell effects also affect quasi-fission reactions occurring in heavy-ion collisions. Systematic time-dependent Hartree-Fock simulations of 50Ca+176Yb collisions show that the mass equilibration between the fragments in quasi-fission is stopped when they reach similar properties to those in the asymmetric fission mode of the 226Th compound nucleus. Similar shell effects are then expected to determine the final repartition of nucleons between the nascent fragments in both mechanisms. Future experimental studies that could test these observations are discussed.

KW - Fission

KW - Quasifission

KW - TDHF

UR - https://www.scopus.com/pages/publications/85116801810

U2 - 10.1016/j.physletb.2021.136648

DO - 10.1016/j.physletb.2021.136648

M3 - Article

SN - 0370-2693

VL - 822

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 136648

ER -

Comparison of fission and quasi-fission modes

Abstract

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