Charge distributions of fission fragments of low- and high-energy fission of Fm, No, and Rf isotopes

H. Paşca, A. V. Andreev, G. G. Adamian, N. V. Antonenko

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The charge (mass) distributions of fission fragments resulting from low- and high-energy fission of the even-even nuclei 254-260,264Fm, 258-264No, and 262-266Rf are studied with the statistical scission-point model. The calculated results are compared with the available experimental data. In contrast to the experimental data, the calculated mass distribution for 258Fm(s.f.) is strikingly similar to the experimental one for 257Fm(s.f.). The transformation of the shape of charge distribution with increasing isospin and excitation energy occurs gradually and in a similar fashion like that of the mass distribution, but slower. For 254Fm(i.f.), 257Fm(nth,f), and 260Fm(s.f.), the unexpected difference (symmetric or asymmetric) between the shapes of charge and mass distributions is predicted for the first time. At some critical excitation energy, the saturation of the symmetric component of charge (mass) yields is demonstrated.

Original languageEnglish
Article number034621
JournalPhysical Review C
Volume97
Issue number3
DOIs
Publication statusPublished - 26 Mar 2018

Fingerprint

mass distribution
charge distribution
fission
isotopes
fragments
even-even nuclei
energy
excitation
cleavage
saturation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Charge distributions of fission fragments of low- and high-energy fission of Fm, No, and Rf isotopes. / Paşca, H.; Andreev, A. V.; Adamian, G. G.; Antonenko, N. V.

In: Physical Review C, Vol. 97, No. 3, 034621, 26.03.2018.

Research output: Contribution to journalArticle

@article{f6beb564fcf14a09bef313b481671844,
title = "Charge distributions of fission fragments of low- and high-energy fission of Fm, No, and Rf isotopes",
abstract = "The charge (mass) distributions of fission fragments resulting from low- and high-energy fission of the even-even nuclei 254-260,264Fm, 258-264No, and 262-266Rf are studied with the statistical scission-point model. The calculated results are compared with the available experimental data. In contrast to the experimental data, the calculated mass distribution for 258Fm(s.f.) is strikingly similar to the experimental one for 257Fm(s.f.). The transformation of the shape of charge distribution with increasing isospin and excitation energy occurs gradually and in a similar fashion like that of the mass distribution, but slower. For 254Fm(i.f.), 257Fm(nth,f), and 260Fm(s.f.), the unexpected difference (symmetric or asymmetric) between the shapes of charge and mass distributions is predicted for the first time. At some critical excitation energy, the saturation of the symmetric component of charge (mass) yields is demonstrated.",
author = "H. Paşca and Andreev, {A. V.} and Adamian, {G. G.} and Antonenko, {N. V.}",
year = "2018",
month = "3",
day = "26",
doi = "10.1103/PhysRevC.97.034621",
language = "English",
volume = "97",
journal = "Physical Review C",
issn = "2469-9985",
publisher = "American Physical Society",
number = "3",

}

TY - JOUR

T1 - Charge distributions of fission fragments of low- and high-energy fission of Fm, No, and Rf isotopes

AU - Paşca, H.

AU - Andreev, A. V.

AU - Adamian, G. G.

AU - Antonenko, N. V.

PY - 2018/3/26

Y1 - 2018/3/26

N2 - The charge (mass) distributions of fission fragments resulting from low- and high-energy fission of the even-even nuclei 254-260,264Fm, 258-264No, and 262-266Rf are studied with the statistical scission-point model. The calculated results are compared with the available experimental data. In contrast to the experimental data, the calculated mass distribution for 258Fm(s.f.) is strikingly similar to the experimental one for 257Fm(s.f.). The transformation of the shape of charge distribution with increasing isospin and excitation energy occurs gradually and in a similar fashion like that of the mass distribution, but slower. For 254Fm(i.f.), 257Fm(nth,f), and 260Fm(s.f.), the unexpected difference (symmetric or asymmetric) between the shapes of charge and mass distributions is predicted for the first time. At some critical excitation energy, the saturation of the symmetric component of charge (mass) yields is demonstrated.

AB - The charge (mass) distributions of fission fragments resulting from low- and high-energy fission of the even-even nuclei 254-260,264Fm, 258-264No, and 262-266Rf are studied with the statistical scission-point model. The calculated results are compared with the available experimental data. In contrast to the experimental data, the calculated mass distribution for 258Fm(s.f.) is strikingly similar to the experimental one for 257Fm(s.f.). The transformation of the shape of charge distribution with increasing isospin and excitation energy occurs gradually and in a similar fashion like that of the mass distribution, but slower. For 254Fm(i.f.), 257Fm(nth,f), and 260Fm(s.f.), the unexpected difference (symmetric or asymmetric) between the shapes of charge and mass distributions is predicted for the first time. At some critical excitation energy, the saturation of the symmetric component of charge (mass) yields is demonstrated.

UR - http://www.scopus.com/inward/record.url?scp=85044993397&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85044993397&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.97.034621

DO - 10.1103/PhysRevC.97.034621

M3 - Article

VL - 97

JO - Physical Review C

JF - Physical Review C

SN - 2469-9985

IS - 3

M1 - 034621

ER -