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Related papers: Rotation of pear-shaped $^{100}$Ru nucleus

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We offer the hypothesis that atomic nuclei, nucleons, and atoms possess a new type of electromagnetic moment, that we call a ``cyclo-toroid moment''. In nuclei, this moment arises when the toroid dipole (anapole) moments are arrayed in the…

Nuclear Theory · Physics 2007-05-23 E. V. Tkalya

It has been debated whether the experimentally-identified superdeformed rotational band in $^{40}$Ar [E. Ideguchi, et al., Phys. Lett. B 686 (2010) 18] has an axially or triaxially deformed shape. Projected shell model calculations with…

Nuclear Theory · Physics 2015-08-18 Ying-Chun Yang , Yan-Xin Liu , Yang Sun , Mike Guidry

The nuclear charge radius is a fundamental observable that encodes key aspects of nuclear structure, deformation, and pairing. Isotonic (constant neutron number) systematics in the deformed rare-earth region have long suggested that odd-$Z$…

We combine DensePak integral field unit and TAURUS Fabry-Perot observations of 13 nuclear rings to show an interconnection between the kinematic properties of the rings and their resonant origin. The nuclear rings have regular and symmetric…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Lisa M. Mazzuca , Robert A. Swaters , Johan H. Knapen , Sylvain Veilleux

Positive-parity levels and 16 rotational bands are theoretically analyzed on the basis of phenomenological models of the atomic nucleus with the use of new experimental data on excited states in the ^{160}Dy nucleus recently gained in the…

Nuclear Theory · Physics 2007-05-23 J. Adam , V. P. Garistov , M. Honusek , J. Dobes , J. Zvolski , J. Mrazek , A. A. Solnyshkin

Eight pairs of rare earth normally deformed nuclei around the isobaric nuclei with A = 164 and have identical values of F-spin have been studied. These pairs of identical bands cover 16 mass units and are classified. We suggested a…

Nuclear Theory · Physics 2023-02-01 M. A. Abdelsalam , H. A. Ghanim , M. Kotb , A. M. Khalaf

We have performed a systematic study of the ground state for even-even 1,002 nuclei in which 28 octupole-deformed nuclei are found. The interplay between the spatial deformation and the pairing correlation, plays important roles in nuclear…

Nuclear Theory · Physics 2017-07-25 Shuichiro Ebata , Takashi Nakatsukasa

The properties of the states of the alternating parity bands in actinides, Ba, Ce and Nd isotopes are analyzed within a cluster model. The model is based on the assumption that cluster type shapes are produced by the collective motion of…

Nuclear Theory · Physics 2009-11-07 T. M. Shneidman , G. G. Adamian , N. V. Antonenko , R. V. Jolos , W. Scheid

Properties of octupole vibrations in rapidly rotating nuclei are discussed. Microscopic RPA calculations based on the cranked shell model are performed to investigate the interplay between rotation and vibrations. The ability of this model…

Nuclear Theory · Physics 2007-05-23 Takashi Nakatsukasa

Recent high-energy heavy ion collision experiments have revealed that some atomic nuclei exhibit unusual softness and significant shape fluctuations. In this work, we use the fully self-consistent mean-field theory to identify all even-even…

Nuclear Theory · Physics 2026-02-16 Minh-Loc Bui , Le-Anh Nguyen , Panagiota Papakonstantinou , Naftali Auerbach

This work is an update of the 2000 publication of magnetic-rotational bands by Amita et al. [1], followed by an unpublished update of 2006 [2], and reviews detailed experimental data extracted from original publications for 228…

Nuclear Theory · Physics 2025-06-03 Sushil Kumar , Sukhjeet Singh , Balraj Singh , Amita , Ashok Kumar Jain

In nonspherical nuclei at $J = J_c + 0$ the relationship between the angular momentum and angular velocity immediately after backbending is the same as in the limiting case $J - J_c\to\infty$. This indicates that there is a unique type of…

Nuclear Theory · Physics 2007-05-23 V. G. Nosov , A. M. Kamchatnov

We propose a collective Hamiltonian which incorporates interactions capable to generate rotations in nuclei with simultaneous presence of octupole and quadrupole deformations. It is demonstrated that the model formalism could be applied to…

Nuclear Theory · Physics 2009-11-07 N. Minkov , S. B. Drenska , P. P. Raychev , R. P. Roussev , D. Bonatsos

Shell model calculations using realistic interactions reveal that the ground and low-lying yrast states of the $N=Z$ nucleus $^{92}_{46}$Pd are mainly built upon isoscalar neutron-proton pairs each carrying the maximum angular momentum J=9…

Nuclear Theory · Physics 2011-08-31 Chong Qi , J. Blomqvist , T. Bäck , B. Cederwall , A. Johnson , R. J. Liotta , R. Wyss

Recent studies of the backbending phenomenon in medium light weight nuclei near A~60 expanded greatly our interest about how the single particle orbits are nonlinearly affected by the collective motion. As a consequence we have applied a…

Nuclear Theory · Physics 2015-06-26 S. U. El-Kameesy , H. H. Alharbi , y , H. A. Alhendi

The analysis of the present understanding of collective rotation in very neutron-rich nuclei is presented. It is shown that collective rotation can lead to the increase of stability of rotational states with increasing spin. The detailed…

Nuclear Theory · Physics 2025-01-10 A. V. Afanasjev , S. Teeti , A. Taninah

A highly-deformed rotational band has been identified in the N=Z nucleus 36Ar. At high spin the band is observed to its presumed termination at I=16+, while at low spin it has been firmly linked to previously known states in 36Ar. Spins,…

A very good linear correlation is found between the four-point charge radius relation $\delta R_{2p-2n}(Z,N)$ with that of quadrupole deformation data in even-even nuclei. This results in a further improved charge radius relation that holds…

Nuclear Theory · Physics 2017-01-19 Bao-Hua Sun , Chuan-Ye Liu , Hao-Xin Wang

Octupole deformed shapes in neutron-rich actinides and superheavy nuclei as well as extremely deformed shapes of the N~Z light nuclei have been investigated within the framework of covariant density functional theory. We confirmed the…

Nuclear Theory · Physics 2018-03-14 A. V. Afanasjev , H. Abusara , S. E. Agbemava

I review the phenomena associated with pairing in nuclear physics, most prominently the ubiquitous presence of odd-even mass differences and the properties of the excitation spectra, very different for even-even and odd-A nuclei. There are…

Nuclear Theory · Physics 2017-08-23 G. F. Bertsch