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相关论文: Candidates for three-quasiparticle $K$-isomers in …

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Following our study of possible $K$-isomers in odd-even Md-Rg nuclei, here we continue with searching for three-quasiparticle 1$\nu$2$\pi$ and 3$\nu$ isomer candidates in even-odd Fm - Cn nuclei. We use the same approach to calculate…

核理论 · 物理学 2025-08-19 P. Jachimowicz , M. Kowal , J. Skalski

We have investigated shapes and sizes of selected two- and four-quasiparticle \mbox{high-$K$} states in nobelium and rutherfordium isotopes within the microscopic-macroscopic model with the deformed Woods-Saxon potential. Excited nuclear…

核理论 · 物理学 2020-06-04 M. Palczewski , P. Jachimowicz , M. Kowal

Three-quasiparticle $K$-isomeric states in odd-mass $N=106$ isotones within the $A\sim 180$ mass region are systematically investigated using configuration-constrained potential energy surface calculations. The calculations successfully…

核理论 · 物理学 2025-11-25 Runyan Dong , Changfeng Jiao

Decay spectroscopy of the odd-proton nuclei $^{249}$Md and $^{251}$Md has been performed. High-$K$ isomeric states were identified for the first time in these two nuclei through the measurement of their electromagnetic decay. An isomeric…

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 low excitation. Energies are calculated within the…

核理论 · 物理学 2018-07-25 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. The macroscopic-microscopic model based on the deformed…

核理论 · 物理学 2015-10-28 P. Jachimowicz , M. Kowal , J. Skalski

Configuration-constrained potential-energy-surface calculations have been performed to investigate the $K$ isomerism in the proton-rich $A\sim80$ mass region. An abundance of high-$K$ states are predicted. These high-$K$ states arise from…

核理论 · 物理学 2016-05-25 Z. J. Bai , C. F. Jiao , Y. Gao , F. R. Xu

Isomeric states in the nuclei along the rapid proton capture process path are studied by the projected shell model. Emphasis is given to two waiting point nuclei Se-68 and Kr-72 that are characterized by shape coexistence. Energy surface…

核理论 · 物理学 2009-11-11 Yang Sun , Michael Wiescher , Ani Aprahamian , Jacob L. Fisker

Inspired by the newly discovered isomeric states in the rare-earth neutron-rich nuclei, high-$K$ isomeric states in neutron-rich samarium and gadolinium isotopes are investigated within the framework of the cranked shell model (CSM) with…

核理论 · 物理学 2018-12-19 Xiao-Tao He , Yu-Chun Li

High-$K$ isomeric states in even-even and odd-mass nuclei are described within a mean-field framework with full blocking and using the finite range Gogny force. Theoretical calculations of low energy spectra of several nuclei across the…

核理论 · 物理学 2023-12-06 L. M. Robledo

Configuration-constrained calculations of potential-energy surfaces in even-even superheavy nuclei reveal systematically the existence at low excitation energies of multi-quasiparticle states with deformed axially symmetric shapes and large…

核理论 · 物理学 2009-11-10 F. R. Xu , E. G. Zhao , R. Wyss , P. M. Walker

Predictions of the spectroscopic properties of low-lying states are critical for nuclear structure studies, but are problematic for nuclei with an odd nucleon due to the interplay of the unpaired single particle with nuclear collective…

核理论 · 物理学 2017-12-06 S. Quan , W. P. Liu , Z. P. Li , M. S. Smith

We study the evolution of $K^{\pi}=6^{+}$ and $8^{-}$ two-quasiparticle (q.p.) configurations in the isotopic and isotonic chains of even-even deformed nuclei around $^{178}$Hf and their ability to describe series of observed $K$-isomer…

核理论 · 物理学 2024-08-21 N. Minkov , L. Bonneau , P. Quentin , J. Bartel , H. Molique , Meng-Hock Koh

Masses of superheavy (SH) nuclei with $Z=98-128$, including odd and odd-odd nuclei, are systematically calculated within the microscopic-macroscopic model based on the deformed Woods-Saxon potential. Ground states are found by minimizing…

核理论 · 物理学 2015-06-18 P. Jachimowicz , M. Kowal , J. Skalski

Potential energy surfaces of nine even-even isotopes of Pt, Hg, and Pb around $^{186}$Pt are evaluated within a macroscopic-microscopic model based on the Lublin-Strasbourg-Drop macroscopic energy and the microscopic energy obtained using…

核理论 · 物理学 2025-11-11 J. Bartel , H. Molique , B. Nerlo-Pomorska , M. Warda , K. Pomorski

As a follow up of [Phys. Scr. 99 055305 (2024)], where we studied axial octupole shapes in two-quasiparticle states of even-even nuclei, we investigate this type of shapes in odd-mass and odd-odd well-deformed nuclei, using the…

核理论 · 物理学 2025-12-23 N. Kontowicz , L. Bonneau , J. Bartel , H. Molique , N. Minkov , M. -H. Koh

The newly observed isomer and ground-state band in the odd-Z neutron-rich rare-earth nucleus $^{163}$Eu are investigated by using the cranked shell model (CSM) with pairing treated by the particle-number conserving (PNC) method. This is the…

核理论 · 物理学 2019-06-18 Xiao-Tao He , Ze-Long Chen

Pseudo-SU(3) shell-model results are reported for M1 excitation strengths in 157-Gd, 163-Dy and 169-Tm in the energy range between 2 and 4 MeV. Non-zero pseudo-spin couplings between the configurations play a very important role in…

核理论 · 物理学 2009-11-07 Carlos E. Vargas , Jorge G. Hirsch , Jerry P. Draayer

Nuclear isomer is a current research focus. To describe isomers, we present a method based on the Projected Shell Model. Two kinds of isomers, K-isomers and shape isomers, are discussed. For the K-isomer treatment, K-mixing is properly…

核理论 · 物理学 2008-03-16 Yang Sun

Stimulated by the recent experimental discovery of the sub-$\mu$s fission nucleus $^{252}$Rf [Phys. Rev. Lett. 134 (2025) 022501], we perform an improved configuration-constrained potential-energy-surface calculation, revealing the…

核理论 · 物理学 2025-12-23 Zhen-Zhen Zhang , Hua-Lei Wang , Kui Xiao , Min-Liang Liu
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