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The reanalysis of the published experimental data from reaction Co-59(p,2gamma)Ni-60 was performed. The region of the most probable values of level density and radiative strength functions of cascade gamma-transitions was determined. The…

核实验 · 物理学 2015-03-19 A. M. Sukhovoj , V. A. Khitrov

The isoscalar giant dipole resonance (ISGDR) has been investigated in 208Pb using inelastic scattering of 400 MeV alpha particles at forward angles, including 0deg. Using the superior capabilities of the Grand Raiden spectrometer, it has…

The radiative thermal neutron capture cross sections over the range of thermal energies from 1 keV to 1 MeV are studied in statistical Hauser-Feshbach formalism. The optical model potential is constructed by folding the density dependent…

核理论 · 物理学 2016-11-15 Saumi Dutta , G. Gangopadhyay , Abhijit Bhattacharyya

A low-energy enhancement (LEE) has been observed in the deexcitation $\gamma$-ray strength function ($\gamma$SF) of compound nuclei. The LEE has been a subject of intense experimental and theoretical interest since its discovery, and, if…

核理论 · 物理学 2025-01-08 Y. Alhassid , P. Fanto , A. Mercenne

Radio-frequency (rf) fields in the MHz range are used to induce resonant energy transfer between cold Rydberg atoms in spatially separated volumes. After laser preparation of the Rydberg atoms, dipole-dipole coupling excites the 49s atoms…

There are some discrepancies in the low energy data on the photoabsorption cross section of $^4$He. We calculate the cross section with realistic nuclear forces and explicitly correlated Gaussian functions. Final state interactions and two-…

核理论 · 物理学 2015-06-04 W. Horiuchi , Y. Suzuki , K. Arai

Nuclear level density (NLD) and radiative strength function (RSF) are described simultaneously within a microscopic approach, which takes into account the thermal effects of the exact pairing as well as the giant resonances within the…

核理论 · 物理学 2016-12-20 N. Quang Hung , N. Dinh Dang , L. T. Quynh Huong

We revisit QCD calculations of radiative heavy meson decay form factors by including the subleading power corrections from the twist-two photon distribution amplitude at next-to-leading-order in $\alpha_s$ with the method of the light-cone…

高能物理 - 唯象学 · 物理学 2020-02-11 Hua-Dong Li , Cai-Dian Lü , Chao Wang , Yu-Ming Wang , Yan-Bing Wei

We calculate the magnetic dipole $\gamma$-ray strength functions in a chain of even-mass neodymium isotopes $^{144-152}$Nd in the framework of the configuration-interaction (CI) shell model. We infer the strength function by applying the…

核理论 · 物理学 2025-01-08 A. Mercenne , P. Fanto , W. Ryssens , Y. Alhassid

New superheavy nuclei are often identified through their characteristic $\alpha$-decay energies, which requires accurate calculations of $Q_{\alpha}$ values. While many $Q_{\alpha}$ predictions are available, little is known about their…

核理论 · 物理学 2019-01-30 Erik Olsen , Witold Nazarewicz

Background: Properties of giant dipole resonances, along with other nuclear resonances, provide valuable tools for refining theoretical models as they reflect collective features of nuclear matter. Among such collective phenomena is…

核理论 · 物理学 2026-04-24 Manu Kanerva , Markus Kortelainen

The possible constraints on the poorly determined symmetry part of the effective nuclear Hamiltonians or effective energy functionals, i.e., the so-called symmetry energy S(rho), are very much under debate. In the present work, we show that…

核理论 · 物理学 2008-11-26 Luca Trippa , Gianluca Colo' , Enrico Vigezzi

The isoscalar giant monopole resonance (GMR) in Samarium isotopes (from spherical $^{144}$Sm to deformed $^{148-154}$Sm) is investigated within the Skyrme random-phase-approximation (RPA) for a variety of Skyrme forces. The exact RPA and…

核理论 · 物理学 2016-02-10 J. Kvasil , V. O. Nesterenko , A. Repko , D. Bozik , W. Kleinig , P. -G. Reinhard

New basis functions for 2 dimensional (2D) image analysis with a circular boundary (referred to as multipole analysis) are derived which are equal-area weighted. We present open access Python code hosted by GitHub, with which users can…

天体物理仪器与方法 · 物理学 2026-05-06 D. A. Leahy , S. Ranasinghe , M. D. Filipovic , Z. J. Smeaton

A novel method for calculating spectroscopic properties of medium-mass and heavy atomic nuclei with an odd number of nucleons is introduced, based on the framework of nuclear energy density functional theory and the particle-core coupling…

核理论 · 物理学 2016-05-04 K. Nomura , T. Nikšić , D. Vretenar

The pygmy dipole resonance and photon strength functions (PSF) in stable and unstable Ni and Sn isotopes are calculated within the microscopic self-consistent version of the extended theory of finite fermi systems in the quasiparticle time…

核理论 · 物理学 2016-02-17 Oleg Achakovskiy , Alexander Avdeenkov , Sergei Kamerdzhiev

The experimental gamma-ray strength functions (gamma-SFs) of 142,144-151Nd have been studied for gamma-ray energies up to the neutron separation energy. The results represent a unique set of gamma-SFs for an isotopic chain with increasing…

The coupling of the high-lying dipole mode to the low-lying quadrupole modes for the case of deformed gamma-unstable nuclei is studied. Results from the geometrical model are compared to those obtained within the dipole boson model.…

核理论 · 物理学 2009-11-06 C. E. Alonso , M. V. Andres , J. M. Arias , E. G. Lanza , A. Vitturi

Photoabsorption of atomic oxygen in the energy region below the $\rm 1s^{-1}$ threshold in x-ray spectroscopy from {\it Chandra} and {\it XMM-Newton} is observed in a variety of x-ray binary spectra. Photoabsorption cross sections…

高能天体物理现象 · 物理学 2015-06-16 B. M. McLaughlin , C. P. Ballance , K. P. Bowen , D. J. Gardenghi , W. C. Stolte

Using our early experimental data on the cascade gamma-transitions from the 162Dy(n,2gamma) reaction, we determined dependence of the cascade intensity on the energy of their intermediate levels, and then - level density and radiatibe…

核实验 · 物理学 2007-05-23 V. A. Khitrov , Li Chol , A. M. Sukhovoj