Calculated fission-fragment mass yields and average total kinetic energies of heavy and superheavy nuclei

被引：12

作者：

Albertsson, Martin ^{[1
]}

Carlsson, B. Gillis ^{[1
]}

Dossing, Thomas ^{[2
]}

Moller, Peter ^{[1
]}

Randrup, Jorgen ^{[3
]}

Aberg, Sven ^{[1
]}

机构：

[1] Lund Univ, Math Phys, S-22100 Lund, Sweden

[2] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen O, Denmark

[3] Lawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94720 USA

来源：

EUROPEAN PHYSICAL JOURNAL A | 2020年 / 56卷 / 02期

关键词：

SYSTEMATICS; STABILITY;

D O I：

10.1140/epja/s10050-020-00036-9

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Fission-fragment mass and total-kinetic-energy (TKE) distributions following fission of even-even nuclides in the region 74 <= Z <= 126 and 92 <= N <= 230, comprising 896 nuclides have been calculated using the Brownian shape-motion method. The emphasis is the region of superheavy nuclei. To show compatibility with earlier results the calculations are extended to include earlier studied regions. An island of asymmetric fission is obtained in the superheavy region, 106 <= Z <= 114 and 162 <= N <= 176, where the heavy fragment is found to be close to 208Pb and the light fragment adjusts accordingly. Most experimentally observed alpha -decay chains of superheavy nuclei with Z>113 terminate by spontaneous fission in our predicted region of asymmetric fission. In these cases, the pronounced large asymmetry is accompanied by a low TKE value compatible with measurements.

引用

页数：6

共 50 条

[1] Calculated fission-fragment mass yields and average total kinetic energies of heavy and superheavy nuclei
Martin Albertsson
B. Gillis Carlsson
Thomas Døssing
Peter Möller
Jørgen Randrup
Sven Åberg
The European Physical Journal A, 2020, 56
[2] FISSION FRAGMENT KINETIC AND EXCITATION ENERGIES FOR HEAVY AND SUPERHEAVY NUCLEI
SCHMITT, HW
MOSEL, U
BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1971, 16 (10): : 1149 - &
[3] Fission-Fragment Mass Distribution and Heavy Nuclei Nucleosynthesis
Panov, I. V.
PHYSICS OF PARTICLES AND NUCLEI, 2023, 54 (03) : 542 - 546
[4] Fission-Fragment Mass Distribution and Heavy Nuclei Nucleosynthesis
I. V. Panov
Physics of Particles and Nuclei, 2023, 54 : 542 - 546
[5] Isotopic and isotonic effects in fission-fragment mass yields of actinide nuclei
Gorodisskiy, DM
Mulgin, SI
Okolovich, VN
Rusanov, AY
Zhdanov, SV
PHYSICS LETTERS B, 2002, 548 (1-2) : 45 - 51
[6] Fission of heavy and superheavy nuclei at low excitation energies
Itkis, M. G.
Calabretta, L.
Hanappe, F.
Itkis, Yu. M.
Kelic, A.
Kondratiev, N. A.
Kozulin, E. M.
Oganessian, Yu. Ts.
Pokhorova, I. V.
Prokhorova, E. V.
Rudolf, G.
Rusanov, A. Ya.
Stuttge, L.
NUCLEAR PHYSICS A, 1999, 654 (01) : 870C - 877C
[7] Fission-fragment mass yields of highly excited nuclei with 119 ≤ A ≤ 218 produced in various reactions
Denisov, V. Yu.
Sedykh, I. Yu.
NUCLEAR PHYSICS A, 2017, 963 : 15 - 32
[8] Potential energy surfaces and fission fragment mass yields of even-even superheavy nuclei
Pavel V.Kostryukov
Artur Dobrowolski
Bo?ena Nerlo-Pomorska
Micha? Warda
肖志刚
陈永静
刘丽乐
田俊龙
Krzysztof Pomorski
Chinese Physics C, 2021, 45 (12) : 159 - 178
[9] Potential energy surfaces and fission fragment mass yields of even-even superheavy nuclei
Kostryukov, Pavel, V
Dobrowolski, Artur
Nerlo-Pomorska, Bozena
Warda, Michal
Xiao, Zhigang
Chen, Yongjing
Liu, Lile
Tian, Jun-Long
Pomorski, Krzysztof
CHINESE PHYSICS C, 2021, 45 (12)
[10] Fission-fragment mass distribution and particle evaporation at low energies
Schmitt, C
Bartel, J
Pomorski, K
Surowiec, A
ACTA PHYSICA POLONICA B, 2003, 34 (03): : 1651 - 1670

← 1 2 3 4 5 →