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相关论文: Shell stabilization of super- and hyperheavy nucle…

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The existence of bubble nuclei identified by the central depletion in nucleonic density is studied for the conventional magic N (Z) $=$ 8, 20, 28, 40, 50, 82, 126 isotones (isotopes) and recently speculated magic N $=$ 164, 184, 228…

核理论 · 物理学 2018-12-26 G. Saxena , M. Kumawat , M. Kaushik , S. K. Jain , Mamta Aggarwal

Quantum shell effects are known to affect the formation of fragments in nuclear fission. Shell effects also affect quasi-fission reactions occurring in heavy-ion collisions. Systematic time-dependent Hartree-Fock simulations of 50Ca+176Yb…

核理论 · 物理学 2021-10-19 C. Simenel , P. McGlynn , A. S. Umar , K. Godbey

The theory of QED corrections to hyperfine structure in light hydrogenic atoms and ions has recently advanced to the point that the uncertainty of these corrections is much smaller than 1 part per million (ppm), while the experiments are…

核理论 · 物理学 2014-11-18 J. L. Friar , G. L. Payne

The complex nature of the nuclear forces generates a broad range and diversity of observational phenomena. Heavy nuclei, though orders of magnitude less massive than neutron stars, are governed by the same underlying physics, which is…

核实验 · 物理学 2019-09-04 M. Thiel , C. Sfienti , J. Piekarewicz , C. J. Horowitz , M. Vanderhaeghen

Central depression of nucleonic density, i.e., a reduction of density in the nuclear interior, has been attributed to many factors. E.g., bubble structures in superheavy (SH) nuclei are believed to be due to the electrostatic repulsion. In…

核理论 · 物理学 2017-08-16 Bastian Schuetrumpf , Witold Nazarewicz , Paul-Gerhard Reinhard

We report the results of a new global QCD analysis including deep-inelastic scattering data off $^1$H, $^2$H, $^3$H, and $^3$He targets. Nuclear corrections are treated in terms of a nuclear convolution approach with off-shell bound…

高能物理 - 唯象学 · 物理学 2023-06-14 S. I. Alekhin , S. A. Kulagin , R. Petti

For the first time, the calculation of the nuclear matrix element of the double-$\beta$ decay of $^{100}$Mo, with and without the emission of two neutrinos, is performed in the framework of the nuclear shell model. This task is accomplished…

核理论 · 物理学 2022-03-23 L. Coraggio , N. Itaco , G. De Gregorio , A. Gargano , R. Mancino , F. Nowacki

Nuclear structure calculations in the context of a novel hybrid nuclear model, combining the nuclear shell model and the microscopic quasiparticle-phonon model are presented. The predictivity of the hybrid model is tested by computing…

核理论 · 物理学 2025-02-13 Matti Hellgren , Dimitrios K. Papoulias , Jouni Suhonen

Accurate knowledge of the nuclear level density is important both from a theoretical viewpoint as a powerful instrument for studying nuclear structure and for numerous applications. For example, astrophysical reactions responsible for the…

核理论 · 物理学 2017-10-10 S. Karampagia , R. A. Senkov , V. Zelevinsky

The quantum states of a system of particles in a finite spatial domain in general consist of a set of discrete energy eigenvalues; these are usually grouped into bunches of degenerate or close-lying levels, called shells. In fermionic…

介观与纳米尺度物理 · 物理学 2022-09-21 A. I. Yanson , I. K. Yanson , J. M. van Ruitenbeek

The dynamical stability of differentially rotating neutron stars, including hypermassive neutron stars, is of paramount importance in understanding the fate of the post-merger remnant of binary neutron stars mergers and the formation of a…

高能天体物理现象 · 物理学 2025-07-09 Paweł Szewczyk , Dorota Gondek-Rosińska , Pablo Cerdá-Durán

For natural parity states of several odd-A nuclei a comparison of shell model calculations in the full pf configuration space with the Nilsson diagram and particle-rotor predictions shows that prolate strong coupling applies at low…

核理论 · 物理学 2011-07-19 F. Brandolini , C. A. Ur

Quantum shell effects stabilising fission fragments with various shapes have been invoked as a factor determining the distribution of nucleons between the fragments at scission. Shell effects also induce asymmetric shapes in the nucleus on…

核理论 · 物理学 2023-04-13 Rémi Bernard , Cédric Simenel , Guillaume Blanchon

The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. In recent calculations the nuclear level density -- as an important ingredient to the statistical model (Hauser-Feshbach) -- has…

天体物理学 · 物理学 2016-08-30 T. Rauscher , F. -K. Thielemann , K. -L. Kratz

A recent proposed method for $\alpha$-decay energies ($Q_\alpha$) [J.M. Dong, W. Zuo, and W. Scheid, Phys. Rev. Lett. \textbf{107}, 012501 (2011)] can reproduce experimental data of superheavy nuclei (SHN) with an $rms$-value of less than…

核理论 · 物理学 2014-09-01 Z. Li , B. Sun , C. H. Shen , W. Zuo

The proton and neutron density distributions, one- and two-neutron separation energies and radii of nuclei for which neutron halos are experimentally observed, are calculated using the self-consistent Hartree-Fock-Bogoliubov method with the…

核理论 · 物理学 2011-10-11 B. Nerlo-Pomorska , K. Pomorski , J. F. Berger , J. Decharge

Complex and exotic nuclear geometries are expected to appear naturally in dense nuclear matter found in the crust of neutron stars and supernovae environment collectively referred to as nuclear pasta. The pasta geometries depend on the…

核理论 · 物理学 2017-05-15 F. J. Fattoyev , C. J. Horowitz , B. Schuetrumpf

The cranked relativistic Hartree+Bogoliubov theory has been applied for a systematic study of the nuclei around 254No, the heaviest nuclei for which detailed spectroscopic data are available. The deformation, rotational response, pairing…

核理论 · 物理学 2008-11-26 A. V. Afanasjev , T. L. Khoo , S. Frauendorf , G. A. Lalazissis , I. Ahmad

Innershell ionization of a $1s$ electron by either photons or electrons is important for X-ray photoionized objects such as active galactic nuclei and electron-ionized sources such as supernova remnants. Modeling and interpreting…

天体物理仪器与方法 · 物理学 2014-12-19 W. C. Stolte , V. Jonauskas , D. W. Lindle , M. M. Sant'Anna , D. W. Savin

Large-scale shell model calculations were performed for neutron-rich even-even $^{132-136}$Te using a realistic effective interaction derived from CD-Bonn nucleon-nucleon potential for the positive and negative parity states. The calculated…

核理论 · 物理学 2007-05-23 F. A. Majeed