English
Related papers

Related papers: Triaxial deformation in 10Be

200 papers

The excited states of $^{13}$B were studied with a method of antisymmetrized molecular dynamics(AMD). The theoretical results suggest that the intruder states with large deformations construct the rotational bands, $K^\pi=3/2^-$ and…

Nuclear Theory · Physics 2007-06-26 Yoshiko Kanada-En'yo , Yusuke Kawanami , Yasutaka Taniguchi , Masaaki Kimura

The structure of the second 0^+ state of ^{10}Be is investigated using a microscopic $\alpha+\alpha+n+n$ model based on the molecular-orbit (MO) model. The second 0^+ state, which has dominantly the (1/2^+)^2 configuration, is shown to have…

Nuclear Theory · Physics 2009-11-06 N. Itagaki , S. Okabe , K. Ikeda

We use a microscopic three-cluster model with the $\alpha+\alpha+n$ configuration to analyze with astrophysical interests the photodisintegration cross section of $^9$Be. The valence neutron in $^9$Be is treated in the molecular orbit model…

Nuclear Theory · Physics 2009-11-07 N. Itagaki , K. Hagino

Effects of rotation and valence nucleons in molecular-like linear $\alpha$-chain nuclei are analyzed using a three-dimensional lattice cranking model based on covariant density functional theory. The structure of $^{16}$C and $^{16}$Ne is…

Nuclear Theory · Physics 2023-10-06 D. D. Zhang , Z. X. Ren , P. W. Zhao , D. Vretenar , T. Nikšić , J. Meng

The molecule-like structure of the C isotopes (A=12, 14, 16) is investigated using a microscopic $\alpha+\alpha+\alpha+n+n+\cdot \cdot \cdot$ model. The valence neutrons are classified based on the molecular-orbit (MO) model, and both…

Nuclear Theory · Physics 2009-11-07 N. Itagaki , S. Okabe , I. Ikeda , I. Tanihata

I investigate $^{10}$B+$\alpha$ cluster states of $^{14}$N with a $^{10}$B+$\alpha$ cluster model. Near the $\alpha$-decay threshold energy, I obtain $K^\pi=3^+$ and $K^\pi=1^+$ rotational bands having $^{10}$B($3^+$)+$\alpha$ and…

Nuclear Theory · Physics 2016-01-20 Yoshiko Kanada-En'yo

The rearrangements of protons and neutrons amongst the valence single-particle orbitals during double {\beta} decay of 100Mo have been determined by measuring cross sections in (d,p), (p,d), (3He,{\alpha}) and (3He,d) reactions on 98,100Mo…

Within the low-lying spectrum of 10Be, multiple rotational bands are found, with strikingly different moments of inertia. A proposed interpretation has been that these bands variously represent triaxial rotation and prolate axially-deformed…

Nuclear Theory · Physics 2022-11-21 M. A. Caprio , A. E. McCoy , P. J. Fasano , T. Dytrych

An extensive, model-independent analysis of the nature of triaxial deformation in $^{76}$Ge, a candidate for neutrinoless double-beta ($0\nu\beta\beta$) decay, was carried out following multi-step Coulomb excitation. Shape parameters…

Ab initio theory describes nuclei from a fully microscopic formulation, with no presupposition of collective degrees of freedom, yet signatures of clustering and rotation nonetheless arise. We can therefore look to ab initio theory for an…

Nuclear Theory · Physics 2019-12-24 M. A. Caprio , P. J. Fasano , A. E. McCoy , P. Maris , J. P. Vary

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 complex-rotated hyperspherical adiabatic method is used to study the decay of low-lying $^9$Be resonances into one neutron and two $\alpha$-particles. We investigate the six resonances above the break-up threshold and below 6 MeV:…

Nuclear Theory · Physics 2014-11-21 R. Alvarez-Rodriguez , A. S. Jensen , E. Garrido , D. V. Fedorov

The $K^\pi=0^+_1$, $K^\pi=2^-$, and $K^\pi=0^-_1$ bands of $^{20}$Ne are investigated with microscopic structure and reaction calculations via proton and $\alpha$ inelastic scattering off $^{20}$Ne. Structures of $^{20}$Ne are calculated…

Nuclear Theory · Physics 2020-07-15 Yoshiko Kanada-En'yo , Kazuyuki Ogata

Rotation of triaxially deformed nucleus has been an interesting subject in the study of nuclear structure. In the present series of work, we investigate wobbling motion and chiral rotation by employing the microscopic framework of…

Nuclear Theory · Physics 2018-02-21 Mitsuhiro Shimada , Yudai Fujioka , Shingo Tagami , Yoshifumi R. Shimizu

The newly developed multi-quasiparticle triaxial projected shell-model approach is employed to study the high-spin band structures in neutron-deficient even-even Ce- and Nd-isotopes. It is observed that gamma-bands are built on each…

Nuclear Theory · Physics 2015-05-13 J. A. Sheikh , G. H. Bhat , R. Palit , Z. Naik , Y. Sun

We compute the three-body structure of the lowest resonances of $^{12}$Be considered as two neutrons around an inert $^{10}$Be core. This is an extension of the bound state calculations of $^{12}$Be into the continuum spectrum. We…

Nuclear Theory · Physics 2015-06-05 E. Garrido , A. S. Jensen , D. V. Fedorov , J. G. Johansen

We extend the new concept of nonlocalized clustering to the nucleus 10Be with proton number Z=4 and neutron number N=6 (N=Z+2). The Tohsaki-Horiuchi-Schuck-R\"opke (THSR) wave function is formulated for the description of different…

A puzzle has long existed for the $\alpha$-cluster content in the near-threshold 7.54 MeV state of $^{10}$Be. A new measurement was conducted to measure the cluster-decay partial width of this state, using the reaction $\rm{^9Be}(\rm{^9Be},…

The lowest six rotational bands have been studied in the particle-rotor model with the particle-hole configuration $\pi h^1_{11/2}\otimes\nu h^{-1}_{11/2}$ and different triaxiality parameter $\gamma$. Both constant and spin-dependent…

Nuclear Theory · Physics 2010-12-28 Q. B. Chen , J. M. Yao , S. Q. Zhang , B. Qi
‹ Prev 1 2 3 10 Next ›