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Related papers: On the Backbending Mechanism of $^{48}$Cr

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The structures of two observed high-spin rotational bands in the doubly-odd nucleus ${}^{168}$Ta are investigated using the cranked shell model with pairing correlations treated by a particle-number conserving method, in which the blocking…

Nuclear Theory · Physics 2018-11-21 Zhen-Hua Zhang , Miao Huang

The backbending phenomenon in $^{48}$Cr has been investigated using the recently developed Projected Configuration Interaction (PCI) method, in which the deformed intrinsic states are directly associated with shell model (SM) wavefunctions.…

Nuclear Theory · Physics 2011-06-06 Zao-Chun Gao , Mihai Horoi , Y. S. Chen , Y. J. Chen , Tuya

The collective yrast band and the high spin states of the nucleus 50Cr are studied using the spherical shell model and the HFB method. The two descriptions lead to nearly the same values for the relevant observables. A first backbending is…

Nuclear Theory · Physics 2008-11-26 G. Martínez-Pinedo , A. Poves , L. M. Robledo , E. Caurier , F. Nowacki , J. Retamosa , A. P. Zuker

A semi-microscopic model to study the neutron and proton induced backbending phenomena in some deformed even-even nuclei from the rare earth region, is proposed. The space of particle-core states is defined by the angular momentum…

Nuclear Theory · Physics 2015-06-12 R. Budaca , A. A. Raduta

The projected shell model implements shell model configuration mixing in the projected deformed basis. Our analysis on the recently observed superdeformed band in $^{36}$Ar suggests that the neutron and proton 2-quasiparticle and the…

Nuclear Theory · Physics 2009-11-06 Gui-Lu Long , Yang Sun

The particle-number-conserving method based on the cranked shell model is used to investigate the antimagnetic rotation band in $^{104}$Pd. The experimental moments of inertia and reduced $B(E2)$ transition probabilities are reproduced…

Nuclear Theory · Physics 2019-12-30 Zhen-Hua Zhang

In two previous papers, the Kerman-Klein-Donau-Frauendorf (KKDF) model was used to study rotational bands of odd deformed nuclei. Here we describe backbending for odd nuclei using the same model. The backbending in the neighboring even…

Nuclear Theory · Physics 2008-11-26 Pavlos Protopapas , Abraham Klein , Niels R. Walet

The mechanism of backbending is semi-phenomenologically investigated based on the hybridization of two rotational bands. These bands are defined by treating a model Hamiltonian describing two interacting subsystems: a set of particles…

Nuclear Theory · Physics 2015-05-30 A. A. Raduta , R. Budaca

The collective yrast band of the nucleus $^{48}$Cr is studied using the spherical shell model and the HFB method. Both approaches produce basically the same axially symmetric intrinsic state up to the - accurately reproduced - observed…

Nuclear Theory · Physics 2009-10-28 E. Caurier , J. L. Egido , G. Martinez-Pinedo , A. Poves , J. Retamosa , L. M. Robledo , A. P. Zuker

The backbending in the A=180 mass region is expected to be caused by multi-bands crossing between low-K (g- and s-bands) and high-K bands. % We analyze a mechanism of coupling of these bands in terms of a dynamical treatment for nuclear…

Nuclear Theory · Physics 2009-10-31 Makito Oi , Ahmad Ansari , Takatoshi Horibata , Naoki Onishi

Experimentally observed superdeformed (SD) rotational bands in $^{36}$Ar and $^{40}$Ar are studied by the cranked shell model (CSM) with the paring correlations treated by a particle-number-conserving (PNC) method. This is the first time…

Nuclear Theory · Physics 2020-03-10 Xu-Hui Xiang , Xiao-Tao He

The spectral and statistical properties of nuclei $^{46}$V and $^{48}$Cr are studied in the framework of nuclear shell model. A microscopical effective Hamiltonian derived from the CD-Bonn \textit{NN} potential is employed. The calculations…

Nuclear Theory · Physics 2007-05-23 C. Qi , F. R. Xu

The recently observed two and four-quasiparticle high-spin rotational bands in the odd-odd nuclei $^{166, 168, 170, 172}$Re are investigated using the cranked shell model with pairing correlations treated by a particle-number conserving…

Nuclear Theory · Physics 2021-09-07 Zhen-Hua Zhang , Shuo-Yi Liu

We provide new insights into backbending phenomenon within the symmetry-adapted framework which naturally describes the intrinsic deformation of atomic nuclei. For $^{20}\text{Ne}$, the canonical example of backbending in light nuclei, the…

The superdeformation and hyperdeformation in $^{108}$Cd have been studied for the first time within the framework of the fully self-consistent cranked mean field theory, namely, cranked relativistic mean field theory. The structure of…

Nuclear Theory · Physics 2009-11-11 A. V. Afanasjev , S. Frauendorf

The particle-number conserving method based on the cranked shell model is adopted to investigate the possible antimagnetic rotation bands in $^{100}$Pd. The experimental kinematic and dynamic moments of inertia, together with the $B(E2)$…

Nuclear Theory · Physics 2021-10-04 Jian-Qin Ma , Zhen-Hua Zhang

Study of the N ~ Z nuclei in the mass-80 region is not only interesting due to the existence of abundant nuclear structure phenomena, but also important in understanding the nucleosynthesis in the rp-process. It is not feasible to apply a…

Nuclear Theory · Physics 2009-11-07 Yang Sun

The rotational bands in nuclei with $Z \approx 100$ are investigated systematically by using a cranked shell model (CSM) with the pairing correlations treated by a particle-number conserving (PNC) method, in which the blocking effects are…

Nuclear Theory · Physics 2012-01-27 Zhen-Hua Zhang , Xiao-Tao He , Jin-Yan Zeng , En-Guang Zhao , Shan-Gui Zhou

Superdeformed states in light $N=Z$ nuclei are studied by means of the self-consistent cranking calculation (i.e., the P + QQ model based on the cranked Hartree-Fock-Bogoliubov method). Analyses are given for two typical cases of…

Nuclear Theory · Physics 2008-11-26 Makito Oi

A generic explanation for the recently observed anomalous crossing frequencies in odd proton rare earth nuclei is given. As an example, the proton ${1\over 2} [541]$ band in $^{175}$Ta is discussed in detail by using the angular momentum…

Nuclear Theory · Physics 2009-09-25 Yang Sun , Shuxian Wen , Da Hsuan Feng
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