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Related papers: Transitional $\gamma$ strength in Cd isotopes

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Here, we report on the measurements of the $\gamma$-ray strength functions and nuclear level densities of ${}^{112,114}$Sn performed for the first time at the 9~MV Tandem accelerator facilities at IFIN-HH using the Oslo method. We extract…

Statistical $\gamma$-decay from highly excited states is determined by the nuclear level density (NLD) and the $\gamma$-ray strength function ($\gamma$SF). These average quantities have been measured for several nuclei using the Oslo…

Band oscillator strengths for electronic transitions in CO were obtained at the Synchrotron Radiation Center of the University of Wisconsin-Madison. Our focus was on transitions that are observed in interstellar spectra with the Far…

Astrophysics · Physics 2009-11-06 S. R. Federman , M. Fritts , S. Cheng , K. M. Menningen , David C. Knauth , K. Fulk

Gamma strength functions (GSFs) and level densities (LDs) are essential ingredients of statistical nuclear reaction theory with many applications in astrophysics, reactor design, and waste transmutation. The aim of the present work is a…

Nuclear Experiment · Physics 2017-06-19 S. Bassauer , P. von Neumann-Cosel , A. Tamii

Studies of the $\gamma$-ray strength functions can reveal useful information concerning underlying nuclear structure. Accumulated experimental data on the strength functions show an enhancement in the low $\gamma$ energy region. We have…

Nuclear Theory · Physics 2017-02-27 S. Karampagia , B. A. Brown , V. Zelevinsky

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 intensities of the ten strongest $\gamma$-ray transitions following the $^{111}Sn$ ($T_{1/2}$=35.3 m) decay have been determined via comparison of the two sets of the experimental photonucleon reaction yields driven using the…

Nuclear Experiment · Physics 2021-03-30 A. Chekhovska , Ye. Skakun , I. Semisalov , S. Karpus , V. Kasilov

Partial cross sections of the $^{89}$Y(p,$\gamma$)$^{90}$Zr reaction have been measured to investigate the $\gamma$-ray strength function in the neutron-magic nucleus $^{90}$Zr. For five proton energies between $E_p=3.65$ MeV and $E_p=4.70$…

Nuclear Experiment · Physics 2015-04-21 L. Netterdon , A. Endres , S. Goriely , J. Mayer , P. Scholz , M. Spieker , A. Zilges

Systematic error in determination of the absolute intensities of the two-step gamma-cascades after the thermal neutron capture and its influence on the value and localization of extracted from (n,2gamma)-reaction probable level densities…

Nuclear Experiment · Physics 2007-05-23 V. A. Khitrov , Li Chol , A. M. Sukhovoj

Particle-$\gamma$ coincidences from the $^{89}$Y($p,p' \gamma$)$^{89}$Y and $^{89}$Y($d,p \gamma$)$^{90}$Y reactions were utilized to obtain $\gamma$-ray spectra as function of excitation energy. The Oslo method was used to extract the…

We compute the magnetic dipole (M1) $\gamma$-ray strength functions ($\gamma$SF) for the odd-mass lanthanides $^{143-151}$Nd and $^{147-153}$Sm using the shell-model Monte Carlo method in combination with the static-path approximation and…

Nuclear Theory · Physics 2025-03-13 D. DeMartini , Y. Alhassid

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…

Nuclear Theory · Physics 2014-07-01 M. A. Jafarizadeh , N. Fouladi , H. Sabri , H. Fathi

Photoneutron cross sections were measured for $^{137}$Ba and $^{138}$Ba at energies below two-neutron threshold using quasi-monochromatic $\gamma$-ray beams produced in laser Compton-scattering at the NewSUBARU synchrotron radiation…

The $\gamma$-ray strength function of $^{56}$Fe has been measured from proton-$\gamma$ coincidences for excitation energies up to $\approx 11$ MeV. The low-energy enhancement in the $\gamma$-ray strength function, which was first discovered…

A high-precision relativistic calculations of Cd-like Nd$^{12+}$, Sm$^{14+}$ and Sn-like Pr$^{9+}$, Nd$^{10+}$ atomic properties is carried out using an approach that combines configuration interaction and a linearized coupled-cluster…

Atomic Physics · Physics 2015-06-22 M. S. Safronova , V. A. Dzuba , V. V. Flambaum , U. I. Safronova , S. G. Porsev , M. G. Kozlov

The experimental $E1$ strength distribution below 4 MeV in rare-earth nuclei suggests a local breaking of isospin symmetry. In addition to the octupole states, additional $1^-$ states with enhanced E1 strength have been observed in…

Nuclear Theory · Physics 2015-05-19 M. Spieker , S. Pascu , A. Zilges , F. Iachello

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…

Nuclear Experiment · Physics 2015-03-19 A. M. Sukhovoj , V. A. Khitrov

We have made a thorough study of the low-energy behaviour of the $\gamma$-ray strength function within the framework of the shell model. We have performed large-scale calculations spanning isotopic and isotonic chains over several mass…

Nuclear Theory · Physics 2019-02-12 J. E. Midtbø , A. C. Larsen , T. Renstrøm , F. L. Bello Garrote , E. Lima

In this work, we present new data on the $^{182,183,184}$W($\gamma,n$) cross sections, utilizing a quasi-monochromatic photon beam produced at the NewSUBARU synchrotron radiation facility. Further, we have extracted the nuclear level…

Our understanding of the low-lying resonance structure in $^{12}$C remains incomplete. We have used the $^{11}\text{B}(p,3\alpha)\gamma$ reaction at proton energies of $E_p=0.5-2.7$ MeV as a selective probe of the excitation region above…