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相关论文: Full $fp$-shell study of even-even $^{48-56}$Ti is…

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We present systematic shell-model studies of even-even $^{98-130}$Cd isotopes using a realistic effective shell-model interaction derived from the G-matrix approach with an inert core $^{88}$Sr. Our calculated low-lying excited energy…

核理论 · 物理学 2023-08-23 Deepak Patel , Praveen C. Srivastava , Noritaka Shimizu

Even tin isotopes of mass number $A = 108 \sim 124$ are calculated with realistic interactions in the generalized-seniority approximation of the nuclear shell model. For each nucleus, we compute the lowest ten thousand states ($5000$ of…

核理论 · 物理学 2016-10-26 L. Y. Jia , Chong Qi

We report on calculations of energy levels, radiative rates, oscillator strengths, and line strengths for transitions among the lowest 253 levels of the (1s$^2$2s$^2$2p$^6$) 3s$^2$3p$^5$, 3s3p$^6$, 3s$^2$3p$^4$3d, 3s3p$^5$3d,…

原子物理 · 物理学 2013-07-10 KM Aggarwal , FP Keenan , AZ Msezane

The two-neutrino double beta decay matrix elements and half-lives of $^{48}$Ca, are calculated within a shell-model approach for transitions to the ground state and to the $2^+$ first excited state of $^{48}$Ti. We use the full $pf$ model…

核理论 · 物理学 2008-11-26 M. Horoi , S. Stoica , B. A. Brown

E2 properties of A=6--10 nuclei, including those of nuclei far from stability, are studied by a $(0+2)\hbar\omega$ shell-model calculation which includes E2 core-polarization effects explicitly. The quadrupole moments and the E2 transition…

核理论 · 物理学 2009-10-22 Hitoshi Nakada , Takaharu Otsuka

The evolution of nuclear magic numbers at extremes of isospin is a topic at the forefront of contemporary nuclear physics. $N=50$ is a prime example, with increasing experimental data coming to light on potentially doubly-magic $^{100}$Sn…

Shell model calculations in the full pf-shell are carried out for the A=50, 51 and 52 isobars. The most frequently used effective interactions for the pf-shell, KB3 and FPD6 are revisited and their behaviour at the N=28 and Z=28 closures…

核理论 · 物理学 2008-11-26 A. Poves , J. Sanchez-Solano , E. Caurier , F. Nowacki

This work studies the systematic reduced transition probabilities B(E2), intrinsic quadrupole moments and deformation parameters of Pd isotopes with even neutrons from N= 62 to 66. The downward reduced transition probabilities B(E2) from…

核理论 · 物理学 2014-03-05 I. Hossain , H. Y. Abdullah , I. M. Ahmad , M. A. Saeed

We have reported shell-model results for $^{47-58}$Ca isotopes in the $fp$, $fpg_{9/2}$ and $fpg_{9/2}d_{5/2}$ model spaces using realistic $NN$ interaction. We have also performed a systematic shell-model study using interactions derived…

核理论 · 物理学 2020-05-06 Bharti Bhoy , Praveen C. Srivastava , Kazunari Kaneko

In this paper, the properties of Cd(106-122)isotopes are considered in the U(5)-SO(6)transitional region of IBM1. With employing a transitional Hamiltonian which is based on affine SU(1,1)Lie Algebraic technique, the energy levels and…

核理论 · 物理学 2014-07-01 M. A. Jafarizadeh , N. Fouladi , H. Sabri , H. Fathi

The excitation energies of single analog states in even-odd Ti isotopes and double analog states in even-even Ti isotopes are microscopically described in a single j-shell formalism. A projection procedure for generalized BCS states has…

核理论 · 物理学 2009-11-10 A. A. Raduta , L. Zamick , E. Moya de Guerra , Amand Faessler , P. Sarriguren

Charge radii are investigated along the Tin isotopic chain via ab initio Bogoliubov coupled cluster calculations at the singles and doubles level. In addition to the reproduction of absolute radii, the parabolic behavior of isotopic shifts…

核理论 · 物理学 2026-05-29 Pepijn Demol , Urban Vernik , Thomas Duguet , Alexander Tichai

A measurement of the $^{50}$Ti($d$,$p$)$^{51}$Ti reaction at 16 MeV was performed using a Super Enge Split Pole Spectrograph to measure the magnitude of the $N=32$ subshell gap in Ti. Seven states were observed that had not been observed in…

To study collective motion, the extended pairing plus $QQ$ force model proposed recently is applied to $A$=46, 48 and 50 nuclei in the $fp$ shell region. Exact shell model calculations in the truncated model space…

核理论 · 物理学 2016-09-08 M. Hasegawa , K. Kaneko , S. Tazaki

In an effort to understand the magical status of N=32 and N=34 at the very neutron rich edge, experiments have been carried out in the Titanium isotopes up to A=56. The measured staggering of the B(E2)'s is not reproduced by the shell model…

核理论 · 物理学 2013-05-29 E. Caurier , F. Nowacki , A. Poves

We report calculations of energy levels, radiative rates, oscillator strengths and line strengths for transitions among the lowest 345 levels of Ti X. These include 146 levels of the $n \le$ 3 configurations and 86 of 3s$^2 4\ell$, 3s$^2…

原子物理 · 物理学 2013-07-11 KM Aggarwal , FP Keenan

A shell model study of the low energy region of the spectra in Ge isotopes for $38\leq N\leq 50$ is presented, analyzing the excitation energies, quadrupole moments, $B(E2)$ values and occupation numbers. The theoretical results have been…

核理论 · 物理学 2012-09-27 J. G. Hirsch , P. C. Srivastava

In this work, we present the systematic study of $2\nu$ECEC process in the $^{78}$Kr using large-scale shell-model calculations with the GWBXG effective interaction. We first validate the efficiency of the utilized interaction by comparing…

核理论 · 物理学 2025-06-03 Deepak Patel , Praveen C. Srivastava

Recent interest in spectroscopic factors for single-neutron transfer in low-spin states of the even-odd Xenon $^{125,127,129.131}$Xe and even-odd Tellurium, $^{123,125,127,129,131}$Te isotopes stimulated us to study these isotopes within…

核理论 · 物理学 2015-06-15 S. Abu-Musleh , H. M. Abu-Zeid , O. Scholten

Pair transfer is a unique tool to study pairing correlations in nuclei. Neutron-proton pairing is investigated in the N=Z nuclei of the f-shell, through the reaction (p,3He) in inverse kinematics, that allows to populate at the same time…

核实验 · 物理学 2024-10-21 M. Assié , H. Jacob , Y. Blumenfeld , V. Girard-Alcindor