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What are the limits of the existence of nuclei? What are the highest proton numbers $Z$ at which the nuclear landscape and periodic table of chemical elements cease to exist? These deceivably simple questions are difficult to answer…

核理论 · 物理学 2020-03-17 A. V. Afanasjev , S. E. Agbemava , A. Gyawali

The study of exotic nuclei---nuclei with the ratio of neutron number $N$ to proton number $Z$ deviating much from that of those found in nature---is at the forefront of nuclear physics research because it can not only reveal novel nuclear…

核理论 · 物理学 2017-03-28 Shan-Gui Zhou

The advent of radioactive ion beam facilities and new detector technologies have opened up new possibilities to investigate the radioactive decays of highly unstable nuclei, in particular the proton emission, $\alpha$ decay and heavy…

核理论 · 物理学 2016-05-31 Chong Qi

The shell structure of superheavy nuclei is investigated within various parametrizations of relativistic and nonrelativistic nuclear mean field models. The heaviest known even-even nucleus 264Hs is used as a benchmark to estimate the…

核理论 · 物理学 2008-11-26 K. Rutz , M. Bender , T. Buervenich , T. Schilling , P. -G. Reinhard , J. A. Maruhn , W. Greiner

A comprehensive study of favoured and unfavoured $\alpha$-decay, cluster decay, weak-decay along with spontaneous fission in undetected superheavy nuclei within the range for proton number 111$\leq$Z$\leq$118 and neutron number…

核理论 · 物理学 2023-07-26 A. Jain , P. K. Sharma , S. K. Jain , Dashty T. Akrawy , G. Saxena

Bound, strange, neutral superheavy nuclei, stable against strong decay, may exist. A model effective field theory calculation of the surface energy and density of such systems is carried out assuming vector meson couplings to conserved…

核理论 · 物理学 2009-11-07 Jeff McIntire

Superheavy nuclei represent the heaviest atoms and nuclides known at the limit of mass and charge. The observed superheavy nuclei are all proton-rich; they decay primarily by emitting $\alpha$ particles and fission, with a possible small…

核理论 · 物理学 2024-09-10 A. Ravlić , W. Nazarewicz

Several topics concerning nuclear structure and electromagnetic interactions of heavy nuclei are reviewed. These comprehend the deformed single-particle shell model, nuclear collective motion, symmetry breaking and approximate symmetry…

核理论 · 物理学 2024-06-12 Alejandro Restrepo-Giraldo

The structural evolution of the heavy nuclei, with Z > 82, is investigated by looking at the differential variation of the two-neutron separation energies. It indicates, by non-monotonous behavior at certain neutron numbers, structure…

核实验 · 物理学 2015-06-17 D. Bucurescu , N. V. Zamfir

In this paper, we analyze the structural properties of $Z=132$ and $Z=138$ superheavy nuclei within the ambit of axially deformed relativistic mean-field framework with NL$3^{*}$ parametrization and calculate the total binding energies,…

核理论 · 物理学 2017-08-01 Asloob A. Rather , M. Ikram , A. A. Usmani , Bharat Kumar , S. K. Patra

After more than half a century since the first predictions of the so-called "island of stability of superheavy nuclei", exploring the limits of nuclear stability at highest atomic numbers is still one of the most prominent challenges in…

核实验 · 物理学 2025-11-19 Dieter Ackermann

In the present study we want to give an overview on low lying isomeric states in the heaviest nuclei. After a short report on the early history on the discovery of nuclear isomerism and attempts to understand their physical nature, decay…

核理论 · 物理学 2025-10-08 Fritz Peter Hessberger

To synthesize new superheavy elements, the accurate prediction of nuclear masses of superheavy nuclei is essential for calculations of reaction $Q$ values, neutron separation energies and $\alpha$-decay energies, which are important for…

核理论 · 物理学 2024-02-20 Dawei Guan , Junchen Pei

The present-day nuclear structure theory exhibits a great degree of synergy with respect to methods that are used to describe various phenomena in heavy nuclear systems. From few-body methods, through the shell model to mean-field…

核理论 · 物理学 2009-11-07 Jacek Dobaczewski

Structural properties and the decay modes of the superheavy elements Z $=$ 122, 120, 118 are studied in a microscopic framework. We evaluate the binding energy, one- and two- proton and neutron separation energy, shell correction and…

核理论 · 物理学 2019-05-01 G. Saxena , M. Kumawat , S. Somorendro Singh , Mamta Aggarwal

A recent high-resolution $\alpha$, $X$-ray, and $\gamma$-ray coincidence-spectroscopy experiment offered first glimpse of excitation schemes of isotopes along $\alpha$-decay chains of $Z=115$. To understand these observations and to make…

核理论 · 物理学 2014-09-05 Yue Shi , D. E. Ward , B. G. Carlsson , J. Dobaczewski , W. Nazarewicz , I. Ragnarsson , D. Rudolph

Physics of nuclei at extreme values of the isospin is at the focus of present-day nuclear science. Experimentally, thanks to existing and emerging radioactive-ion-beam facilities, we are on the verge of invading the territory of extreme N/Z…

核理论 · 物理学 2011-04-15 J. Dobaczewski

Beyond uranium heavy elements rapidly become increasingly unstable with respect to spontaneous fission as the proton number Z increases, because of the disruptive effect of the long-range Coulomb force. However, in the region just beyond Z…

核理论 · 物理学 2009-10-30 Peter Moller , J. Rayford Nix

The analysis of statistical and systematic uncertainties and their propogation to nuclear extremes has been performed. Two extremes of nuclear landscape (neutron-rich nuclei and superheavy nuclei) have been investigated. For the first…

核理论 · 物理学 2017-10-12 A. V. Afanasjev , S. E. Agbemava , D. Ray , P. Ring

The advent and intensive use of new detector technologies as well as radioactive ion beam facilities have opened up possibilities to investigate alpha, proton and cluster decays of highly unstable nuclei. This article provides a review of…

核理论 · 物理学 2019-03-27 Chong Qi , Roberto Liotta , Ramon Wyss
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