activity
20102026
most citedProperties of heaviest nuclei with and

94 citations · 392 across the 23 of their papers we have counts for

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22 papers · 1 filter

nucl-th2026

A Question of Shape: New Mechanism Governing Superheavy Nuclei Survival

A. Rahmatinejad, T. M. Shneidman, G. G. Adamian +3

We demonstrate that hot superheavy nuclei do not retain spherical shapes, as traditionally assumed, but instead equilibrate in deformed, often oblate or triaxial, configurations at…

nucl-th2025

Candidates for three-quasiparticle -isomers in even-odd Fm-Cn nuclei

P. Jachimowicz, M. Kowal, J. Skalski

Following our study of possible -isomers in odd-even Md-Rg nuclei, here we continue with searching for three-quasiparticle 12 and 3 isomer candidates in even-odd Fm - C…

nucl-th2023

Entropies, level-density parameters, and fission probabilities along the triaxially- and axially-symmetric fission paths in Lv

A. Rahmatinejad, T. M. Shneidman, G. G. Adamian +3

We employ a statistical approach to investigate the influence of axial asymmetry on the nuclear level density and entropy along the fission pathways of a superheavy nucleus, explic…

nucl-th2023

Candidates for three-quasiparticle -isomers in odd-even Md-Rg nuclei

P. Jachimowicz, M. Kowal, J. Skalski

We performed a search for three-quasiparticle high- isomer candidates in odd-even Md - Rg nuclei by considering the lowest lying 12 and 3 excitations. Our approach invo…

nucl-th2023★ 4 cited

Multi-step particle emission probabilities in superheavy nuclei at moderate excitation energies

A. Rahmatinejad, T. M. Shneidman, G. G. Adamian +3

The probabilities of -, -, and -evaporation channels in excited superheavy nuclei were evaluated using the Monte Carlo method. The calculations utilized microscopical…

nucl-th2021

Energy dependent ratios of level-density parameters in superheavy nuclei

A. Rahmatinejad, T. M. Shneidman, G. Adamian +3

The nuclear level densities and level-density parameters in fissioning nuclei at their saddle points of fission barriers - , as well as those for neutron - , proton -…

nucl-th2021★ 8 cited

The decline rate of the production cross-section of superheavy nuclei with at high excitation energies

J. Hong, G. G. Adamian, N. V. Antonenko +2

The production cross sections of superheavy nuclei with charge numbers are predicted in the -evaporation channels of the Ca-induced complete fusion reactio…

nucl-th2020★ 94 cited

Properties of heaviest nuclei with and

P. Jachimowicz, M. Kowal, J. Skalski

We systematically determine ground-state and saddle-point shapes and masses for 1305 heavy and superheavy nuclei with and , including odd- and odd-odd syst…

nucl-th2020

Possibilities of direct production of superheavy nuclei with Z=112--118 in different evaporation channels

J. Hong, G. G. Adamian, N. V. Antonenko +2

The production cross sections of heaviest isotopes of superheavy nuclei with charge numbers 112--118 are predicted in the --, --, and --evaporation channels of the $^…

nucl-th2020

Sizes and shapes of very heavy nuclei in high-K states

M. Palczewski, P. Jachimowicz, M. Kowal

We have investigated shapes and sizes of selected two- and four-quasiparticle \mbox{high-} states in nobelium and rutherfordium isotopes within the microscopic-macroscopic model…

nucl-th2020★ 28 cited

Level-density parameters in superheavy nuclei

A. Rahmatinejad, A. N. Bezbakh, T. M. Shneidman +4

We systematically study the nuclear level densities of superheavy nuclei, including odd systems, using the single-particle energies obtained with the Woods-Saxon potential diagonal…

nucl-th2019★ 35 cited

Static fission properties of actinide nuclei

P. Jachimowicz, M. Kowal, J. Skalski

Fission barriers heights and excitation energies of superdeformed isomeric minima are calculated within the microscopic - macroscopic Woods - Saxon model for 75 actinide nuclei for…

nucl-th2018★ 11 cited

Hindered alpha decays of heaviest high-K isomers

P. Jachimowicz, M. Kowal, J. Skalski

To find candidates for long-lived high-K isomers in even-even Z=106-112 superheavy nuclei we study dominant alpha-decay channel of two- and four-quasi-particle configurations at a…

nucl-th2017★ 12 cited

Fission of SHN & its hindrance: odd nuclei & isomers

Wojciech Brodziński, Piotr Jachimowicz, Michał Kowal +1

After shortly analyzing data relevant to fission hindrance of odd-A nuclei and high- isomers in superheavy (SH) region we point out the inconsistency of current fission theory a…

nucl-th2017★ 24 cited

Effect of tetrahedral shapes in heavy and superheavy nuclei

P. Jachimowicz, M. Kowal, J. Skalski

We search for effects of tetrahedral deformation over a range of heavy and superheavy nuclei, , using a microscopic-macroscopic model based…

nucl-th2016★ 2 cited

Fusion-fission probabilities, cross sections and structure notes of super-heavy nuclei

Michał Kowal, Tomasz Cap, Piotr Jachimowicz +3

Fusion - fission probabilities in the synthesis of heaviest elements are discussed in the context of the latest experimental reports. Cross sections for superheavy nuclei are evalu…

nucl-th2016★ 71 cited

Adiabatic fission barriers in superheavy nuclei

P. Jachimowicz, M. Kowal, J. Skalski

Using the microscopic-macroscopic model based on the deformed Woods-Saxon single-particle potential and the Yukawa-plus-exponential macroscopic energy we calculated static fission…

nucl-th2015★ 19 cited

Candidates for Long Lived High-K Ground States in Superheavy Nuclei

P. Jachimowicz, M. Kowal, J. Skalski

On the basis of systematic calculations for 1364 heavy and superheavy nuclei, including odd-systems, we have found a few candidates for high-K ground states in superheavy nuclei. T…

nucl-th2014★ 42 cited

Q-alpha values in superheavy nuclei from the deformed Woods-Saxon model

P. Jachimowicz, M. Kowal, J. Skalski

Masses of superheavy (SH) nuclei with , including odd and odd-odd nuclei, are systematically calculated within the microscopic-macroscopic model based on the deformed Woo…

nucl-th2013

8Dim calculations of the third barrier in Th and a conflict between theory and experiment on uranium nuclei

P. Jachimowicz, M. Kowal, J. Skalski

We find the height of the third fission barrier and energy of the third minimum in Th using the macroscopic - microscopic model, very well tested in thi…

nucl-th2012★ 5 cited

Ground State and Saddle Point: masses and deformations for even-even superheavy nuclei with 98 < Z < 126 and 134< N < 192

M. Kowal, P. Jachimowicz, J. Skalski

We determine ground-state and saddle-point shapes and masses of even-even superheavy nuclei in the range of proton numbers and neutron numbers $134\leq N \leq 1…

nucl-th2010★ 37 cited

Superdeformed Oblate Superheavy Nuclei?

P. Jachimowicz, M. Kowal, J. Skalski

We study stability of superdeformed oblate (SDO) superheavy nuclei predicted by systematic macroscopic-microscopic calculations in 12D deformation space and confirmed b…