Super-short fission mode in fermium isotopes

M. Albertsson; B. G. Carlsson; T. Døssing; P. Möller; J. Randrup; S. Åberg

doi:10.1103/PhysRevC.104.064616

Super-short fission mode in fermium isotopes

M. Albertsson, B. G. Carlsson, T. Døssing, P. Möller, J. Randrup, S. Åberg

Matematisk fysik

Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

Sammanfattning

The so-called super-short fission mode, in which a nucleus divides nearly symmetrically into two unusually energetic fragments, competes favorably with the standard asymmetric fission mode for spontaneous fission of a limited number of nuclei near Fm264 but it quickly fades away at finite excitations. We investigate the energy-dependent competition between those two fission modes for even fermium isotopes from Fm254 to Fm268, using the Metropolis method to simulate the strongly damped fission dynamics being driven by shape- and energy-dependent level densities. The origin of the super-short mode is discussed and its effects on the fragment mass distribution, the total fragment kinetic energy, and the neutron multiplicity are calculated. Generally good agreement with the available data is obtained.

Originalspråk	engelska
Artikelnummer	064616
Tidskrift	Physical Review C
Volym	104
Nummer	6
DOI	https://doi.org/10.1103/PhysRevC.104.064616
Status	Published - 2021 dec.

Bibliografisk information

Publisher Copyright:
© 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by "https://www.kb.se/samverkan-och-utveckling/oppen-tillgang-och-bibsamkonsortiet/bibsamkonsortiet.html"Bibsam.

Ämnesklassifikation (UKÄ)

Subatomär fysik

Tillgång till dokument

10.1103/PhysRevC.104.064616

1 Artikel i vetenskaplig tidskrift
1 Doktorsavhandling (sammanläggning)

Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, ²⁸²Cn, and spontaneous fission branches
Såmark-Roth, A., Cox, D. M., Rudolph, D., Sarmiento, L. G., Albertsson, M., Carlsson, B. G., Egido, J. L., Golubev, P., Heery, J., Yakushev, A., Åberg, S., Albers, H. M., Block, M., Brand, H., Calverley, T., Cantemir, R., Clark, R. M., Düllmann, C. E., Eberth, J., Fahlander, C., & 34 andraForsberg, U., Gates, J. M., Giacoppo, F., Götz, M., Götz, S., Herzberg, R-D., Hrabar, Y., Jäger, E., Judson, D., Khuyagbaatar, J., Kindler, B., Kojouharov, I., Kratz, J. V., Krier, J., Kurz, N., Lens, L., Ljungberg, J., Lommel, B., Louko, J., Meyer, C-C., Mistry, A., Mokry, C., Papadakis, P., Parr, E., Pore, J. L., Ragnarsson, I., Runke, J., Schädel, M., Schaffner, H., Schausten, B., Shaughnessy, D. A., Thörle-Pospiech, P., Trautmann, N. & Uusitalo, J., 2023 feb. 6, I: Physical Review C. 107, 2, 12 s., 024301.
Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

Öppen tillgång
Fil
2 Nedladdningar (Pure)
Nuclear fission and fusion in a random-walk model
Albertsson, M., 2021 maj 24, Division of nuclear physics, Department of Physics, Lund University.
Forskningsoutput: Avhandling › Doktorsavhandling (sammanläggning)

Öppen tillgång
Fil

Citera det här

@article{6b7f1c214d464abd81b118f752a1c19e,

title = "Super-short fission mode in fermium isotopes",

abstract = "The so-called super-short fission mode, in which a nucleus divides nearly symmetrically into two unusually energetic fragments, competes favorably with the standard asymmetric fission mode for spontaneous fission of a limited number of nuclei near Fm264 but it quickly fades away at finite excitations. We investigate the energy-dependent competition between those two fission modes for even fermium isotopes from Fm254 to Fm268, using the Metropolis method to simulate the strongly damped fission dynamics being driven by shape- and energy-dependent level densities. The origin of the super-short mode is discussed and its effects on the fragment mass distribution, the total fragment kinetic energy, and the neutron multiplicity are calculated. Generally good agreement with the available data is obtained. ",

author = "M. Albertsson and Carlsson, {B. G.} and T. D{\o}ssing and P. M{\"o}ller and J. Randrup and S. {\AA}berg",

note = "Publisher Copyright: {\textcopyright} 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by {"}https://www.kb.se/samverkan-och-utveckling/oppen-tillgang-och-bibsamkonsortiet/bibsamkonsortiet.html{"}Bibsam.",

year = "2021",

month = dec,

doi = "10.1103/PhysRevC.104.064616",

language = "English",

volume = "104",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - Super-short fission mode in fermium isotopes

AU - Albertsson, M.

AU - Carlsson, B. G.

AU - Døssing, T.

AU - Möller, P.

AU - Randrup, J.

AU - Åberg, S.

N1 - Publisher Copyright: © 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by "https://www.kb.se/samverkan-och-utveckling/oppen-tillgang-och-bibsamkonsortiet/bibsamkonsortiet.html"Bibsam.

PY - 2021/12

Y1 - 2021/12

N2 - The so-called super-short fission mode, in which a nucleus divides nearly symmetrically into two unusually energetic fragments, competes favorably with the standard asymmetric fission mode for spontaneous fission of a limited number of nuclei near Fm264 but it quickly fades away at finite excitations. We investigate the energy-dependent competition between those two fission modes for even fermium isotopes from Fm254 to Fm268, using the Metropolis method to simulate the strongly damped fission dynamics being driven by shape- and energy-dependent level densities. The origin of the super-short mode is discussed and its effects on the fragment mass distribution, the total fragment kinetic energy, and the neutron multiplicity are calculated. Generally good agreement with the available data is obtained.

AB - The so-called super-short fission mode, in which a nucleus divides nearly symmetrically into two unusually energetic fragments, competes favorably with the standard asymmetric fission mode for spontaneous fission of a limited number of nuclei near Fm264 but it quickly fades away at finite excitations. We investigate the energy-dependent competition between those two fission modes for even fermium isotopes from Fm254 to Fm268, using the Metropolis method to simulate the strongly damped fission dynamics being driven by shape- and energy-dependent level densities. The origin of the super-short mode is discussed and its effects on the fragment mass distribution, the total fragment kinetic energy, and the neutron multiplicity are calculated. Generally good agreement with the available data is obtained.

U2 - 10.1103/PhysRevC.104.064616

DO - 10.1103/PhysRevC.104.064616

M3 - Article

AN - SCOPUS:85122493341

VL - 104

JO - Physical Review C

JF - Physical Review C

SN - 2469-9985

IS - 6

M1 - 064616

ER -

Super-short fission mode in fermium isotopes

Sammanfattning

Bibliografisk information

Ämnesklassifikation (UKÄ)

Tillgång till dokument

Fingeravtryck

Forskningsoutput

Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, 282Cn, and spontaneous fission branches

Nuclear fission and fusion in a random-walk model

Citera det här

Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, ²⁸²Cn, and spontaneous fission branches