English
Related papers

Related papers: Cluster structures and superdeformation in $^{28}$…

200 papers

High-spin structure of $^{109}$In has been investigated with the $^{100}$Mo($^{14}$N, 5$n$)$^{109}$In reaction at a beam energy of 78 MeV using the in-beam $\gamma$ spectroscopic method. The level scheme of $^{109}$In has been modified…

We discuss an algebraic treatment of four-body clusters which includes both continuous and discrete symmetries. In particular, tetrahedral configurations with T(d) symmetry are analyzed with respect to the energy spectrum, transition form…

Nuclear Theory · Physics 2017-11-02 R. Bijker , F. Iachello

We study the properties of the superdeformed (SD) bands of 195Pb and 193Hg by the cranked Hartree-Fock-Bogoliubov method. Our calculations reproduce the flat behavior of the dynamical moment of inertia of two of the SD bands of 195Pb…

Nuclear Theory · Physics 2008-11-26 J. Terasaki , H. Flocard , P. -H. Heenen , P. Bonche

In this contribution, I discuss an algebraic treatment of alpha-cluster nuclei based on the introduction of a spectrum generating algebra for the relative motion of the alpha-clusters. Particular attention is paid to the discrete symmetry…

Nuclear Theory · Physics 2017-11-02 Roelof Bijker

We present the results of Gaussian-based ground-state and excited-state equation-of-motion coupled-cluster theory with single and double excitations for three-dimensional solids. We focus on diamond and silicon, which are paradigmatic…

Materials Science · Physics 2017-01-19 James McClain , Qiming Sun , Garnet Kin-Lic Chan , Timothy C. Berkelbach

Multi-center (molecular) structures can play an important role in light nuclei. The highly deformed rotational band in 10Be with band head at 6.179 MeV has been observed recently and suggested to have an exotic alpha:2n:alpha configuration.…

The underlying structure of low-lying collective bands of atomic nuclei is discussed from a novel perspective on the interplay between single-particle and collective degrees of freedom, by utilizing state-of-the-art configuration…

Nuclear Theory · Physics 2019-12-04 Takaharu Otsuka , Yusuke Tsunoda , Takashi Abe , Noritaka Shimizu , Piet Van Duppen

We use relativistic ab-initio methods combined with model Hamiltonian approaches to analyze the normal-phase electronic and structural properties of the recently discovered WP superconductor. Remarkably, the outcomes of such study can be…

Superconductivity · Physics 2019-09-25 Giuseppe Cuono , Filomena Forte , Mario Cuoco , Rajibul Islam , Jianlin Luo , Canio Noce , Carmine Autieri

Within a five-particle model (three $\alpha$-particles plus two nucleons), the structure functions of mirror nuclei $^{14}$C and $^{14}$O are studied. Using the variational approach with Gaussian bases, the energies and wave functions are…

Nuclear Theory · Physics 2016-11-24 B. E. Grinyuk , D. V. Piatnytskyi

The superdeformed band, recently discovered in Ca-40 is analysed in an spherical shell model context. Two major oscillator shells, sd and pf are necessary to describe it. The yrast band of the fixed 8p-8h configuration fits extremely well…

Nuclear Theory · Physics 2007-05-23 E. Caurier , F. Nowacki , A. Poves , A. Zuker

The excitation function for the 7 alpha de-excitation of $^{28}$Si nuclei excited to high excitation energies in the collisions of 35 MeV/nucleon $^{28}$Si with $^{12}$C reveals resonance structures that may indicate the population of high…

In the nucleus $^{48}$Ti, whose structure is essential in evaluating the half-life of the neutrinoless double-$\beta$ decay ($0\nu\beta\beta$) of $^{48}$Ca, the existence of the $\alpha$ cluster structure is shown for the first time. A…

Nuclear Theory · Physics 2021-11-22 S. Ohkubo

Excited states of the neutron deficient $^{103}$Cd nucleus have been investigated via the $^{72}$Ge($^{35}$Cl, p3n) reaction at beam energy of 135 MeV by use of in-beam spectroscopic methods. Gamma rays depopulating the excited states were…

We describe electromagnetic and favored \alpha-transitions to rotational bands in odd-mass nuclei built upon a single particle state with angular momentum projection $\Omega=\frac{1}{2}$ in the region $88 \le Z \le 98$. We use the particle…

Nuclear Theory · Physics 2016-03-23 A. Dumitrescu , D. S. Delion

The band-unfolding method is widely used to calculate the effective band structures of a disordered system from its supercell model. The unfolded band structures show the crystallographic symmetry of the underlying structure, where the…

Materials Science · Physics 2017-01-18 Yuji Ikeda , Abel Carreras , Atsuto Seko , Atsushi Togo , Isao Tanaka

The electronic band structure and elastic properties of the Cd${}_{16}$Se${}_{15}$Te solid state solution in the framework of the density functional theory calculations are investigated. The structure of the sample is constructed on the…

Materials Science · Physics 2021-06-28 A. I. Kashuba , B. Andriyevsky , H. A. Ilchuk , R. Yu. Petrus , T. S. Malyi , I. V. Semkiv

A new constraint of clustering for the AMD calculation is proposed. This new constraint gives us large improvement in studying the cluster structure by AMD which sometimes meets difficulty in giving rise to some specific cluster…

Nuclear Theory · Physics 2009-11-10 Yasutaka Taniguchi , Masaaki Kimura , Hisashi Horiuchi

We have simulated the formation of large-scale structure arising from COBE-normalized spectra computed by convolving a primordial double-inflation perturbation spectrum with the CDM transfer function. Due to the broken scale invariance…

Astrophysics · Physics 2015-06-24 R. Kates , V. Müller , S. Gottlöber , J. P. Mücket , J. Retzlaff

Structural and charge relaxation of nanoclusters of CdSe of diameter 1-2 nm are studied with first principle calculations. The relaxations cause significant distortions of smaller systems of ~ 1 nm in diameter and have very minimal effect…

Materials Science · Physics 2014-05-09 Anteneh G Tefera , Mogus D Mochena , Elijah Johnson , James Dickerson

Ab initio perturbed ion plus polarization calculations are reported for doubly-charged nonstoichiometric (MgO)nMg2+ (n=1-29) cluster ions. We consider a large number of isomers with full relaxations of the geometries, and add the…

Atomic and Molecular Clusters · Physics 2009-10-31 Andres Aguado , Francisco Lopez-Gejo , Jose M. Lopez