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Related papers: Isoscalar monopole and quadrupole modes in Mo isot…

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The extraction of the nuclear incompressibility from the isoscalar giant monopole resonance (GMR) measurements is analysed. Both pairing and mutually enhanced magicity (MEM) effects play a role in the shift of the GMR energy between the…

Nuclear Theory · Physics 2009-11-10 Elias Khan

Background: Understanding the experimental $B(E2)$ values for Sn isotopes around $^{110}$Sn has been a significant challenge in nuclear structure studies for over a decade. Both experimental data and many, though not all, calculations…

The breathing-mode giant monopole resonance (GMR) is studied within the framework of the relativistic mean-field theory using the Generator Coordinate Method (GCM). The constrained incompressibility and the excitation energy of isoscalar…

Nuclear Theory · Physics 2009-09-25 M. V. STOITSOV , P. RING , M. M. SHARMA

We present an analysis based on the deformed Quasi Particle Random Phase Approximation, on top of a deformed Hartree-Fock-Bogoliubov description of the ground state, aimed at studying the isoscalar monopole and quadrupole response in a…

Nuclear Theory · Physics 2021-02-03 Danilo Gambacurta , Gianluca Colò , Alessandro Pastore

Isoscalar dipole nuclear response reveals the low- and high-energy resonances. The nature of isoscalar dipole resonances in heavy spherical nuclei is studied by using the translation-invariant kinetic model of small oscillations of finite…

Nuclear Theory · Physics 2018-07-18 V. I. Abrosimov , O. I. Davidovskaya

Isoscalar dipole (compression) mode is studied first using schematic harmonic-oscillator model and, then, the self-consistent Hartree-Fock (HF) and random phase approximation (RPA) solved in coordinate space. Taking ^{208}Pb and the SkM*…

Nuclear Theory · Physics 2009-11-07 I. Hamamoto , H. Sagawa

We have studied the uncharacteristic behavior of the measured values of the isoscalar and isovector centroid energies, ECEN, of giant resonances with multipolarity L=0-3 in 44Ca, 54Fe, 64,68Zn and 56,58,60,68Ni. For this purpose, we carried…

Nuclear Theory · Physics 2021-04-07 G. Bonasera , S. Shlomo , D. H. Youngblood , Y. -W. Lui , J. Button , X. Chen

The extended quantum molecular dynamics (EQMD) model is one of the few quantum molecular dynamics (QMD)-like transport approaches that can be used to study the effective clustering structure as well as heavily deformed nuclei in both ground…

Nuclear Theory · Physics 2024-05-24 Chen-Zhong Shi , Xiang-Zhou Cai , Bo-Song Huang , Yu-Gang Ma

In the present thesis, we have carried a thorough investigation of nuclear structure properties. We start our investigation from the study of the magic property of nucleus in the super -heavy region. We know the magic combination of proton…

Nuclear Theory · Physics 2017-04-12 Subrata Kumar Biswal

Resonances and continuum states of He isotopes are investigated using the cluster orbital shell model (COSM) with the complex scaling method (CSM). We discuss the following subjects: 1) Spectroscopic factors of the unbound nucleus 7He into…

Nuclear Theory · Physics 2011-09-30 Takayuki Myo , Kiyoshi Kato

Most inflationary models predict primordial perturbations to be statistically isotropic and homogeneous. Cosmic microwave background (CMB) observations, however, indicate a possible departure from statistical isotropy in the form of a…

Cosmology and Nongalactic Astrophysics · Physics 2016-05-11 Maresuke Shiraishi , Julian B. Muñoz , Marc Kamionkowski , Alvise Raccanelli

The excitation and subsequent proton decay of the isoscalar giant dipole resonance (ISGDR) in $^{208}$Pb have been investigated via the $^{208}$Pb($\alpha, \alpha^{\prime}p)^{207}$Tl reaction at 400 MeV. Excitation of the ISGDR has been…

The isospin properties and the collectivity of the pygmy dipole resonance (PDR) are long-standing open questions in nuclear structure studies. To answer these questions, the $\gamma$-decay of PDR states in $^{208}$Pb to the low-lying…

Nuclear Theory · Physics 2026-02-25 W. -L. Lv , Y. -F. Niu , G. Colò

Rather than using the geometric method employed in the original Extended Quantum Molecular Dynamics (EQMD) model, this article employs a stochastic approach to analyze the collision term and examine the width of the isovector giant dipole…

Nuclear Theory · Physics 2026-02-25 Chen-Zhong Shi , Xiang-Zhou Cai , Yu-Gang Ma

We investigate effects of pairing and of quadrupole deformation on two sorts of nuclear excitations,$\gamma$-vibrational $K^{\pi}=2^+$ states and dipole resonances (isovector dipole, pygmy, compression, toroidal). The analysis is performed…

Nuclear Theory · Physics 2017-11-21 A. Repko , J. Kvasil , V. O. Nesterenko , P. -G. Reinhard

Main properties of isoscalar giant multipole resonances (up to L=3), including L=0,2 overtones, in medium-mass closed-shell nuclei are described within the semimicroscopic particle-hole dispersive optical model. Main properties are…

Nuclear Theory · Physics 2023-08-09 M. L. Gorelik , S. Shlomo , B. A. Tulupov , M. H. Urin

Within the Energy Density Functional (EDF) approach, the use of mean-field wave-functions deliberately breaking (some) symmetries of the underlying Hamiltonian is an efficient and largely utilized way to incorporate static correlations.…

Nuclear Theory · Physics 2024-04-23 A. Porro , G. Colò , T. Duguet , D. Gambacurta , V. Somà

From a Bayesian analysis of the electric dipole polarizability, the constrained energy of isovector giant dipole resonance, the peak energy of isocalar giant quadrupole resonance and the constrained energy of isocalar giant monopole…

Nuclear Theory · Physics 2021-07-07 Zhen Zhang , Xue-Bin Feng , Lie-Wen Chen

The spin-flip M1 giant resonance is explored in the framework of Random Phase Approximation on the basis of the Skyrme energy functional. A representative set of eight Skyrme parameterizations (SkT6, SkM*, SLy6, SG2, SkO, SkO', SkI4, and…

Nuclear Theory · Physics 2009-11-06 P. Vesely , J. Kvasil , V. O. Nesterenko , W. Kleinig , P. -G. Reinhard , V. Yu. Ponomarev

A selfconsistent approach based on a deformed HF+BCS+QRPA method with density-dependent Skyrme forces is used to describe beta+ decay properties in even-even deformed proton rich nuclei. Residual spin-isospin forces are included in the…

Nuclear Theory · Physics 2009-11-07 P. Sarriguren , E. Moya de Guerra , A. Escuderos