The Simplified Description of Dipole Radiative Strength Function

Plujko, V. A.; Каденко, І.; Gorbachenko, O.M.; Kulich, E. V.

doi:10.1142/s0218301308009744

Cited by 7 publications

(5 citation statements)

References 2 publications

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“…The photonuclear data around the peaks of the GDR can be fitted by Lorentz, Breit-Wigner and Gaussian functions equally well, but their low-and high-energy tails are a different matter [28,29]. Lorentz (G L ) and Breit-Wigner (G BW ) shapes of the photoabsorption cross sections can be derived from different theoretical approaches [30][31][32][33][34][35]. The Lorentzian shape can be transformed to Breit-Wigner,…”

Section: Theoretical Basis and Assumptionsmentioning

confidence: 99%

“…a Standard Lorentzian (SLO) model and a Simplified version of the Modified Lorentzian (SMLO) approach [2,3,17,35].…”

Section: Theoretical Basis and Assumptionsmentioning

confidence: 99%

“…The updated values of the GDR parameters with their associated uncertainties (one-sigma standard deviation) are given in the Tables 1 and 2. They were obtained by fitting the data with two different models of the GDR excitation: a Standard Lorentzian (SLO) model and a Simplified version of the Modified Lorentzian (SMLO) approach [2,3,17,35] (see below Eqs. ( 2)-( 5)).…”

Section: Introduction and General Description Of The Updatesmentioning

confidence: 99%

See 2 more Smart Citations

Giant dipole resonance parameters of ground-state photoabsorption: Experimental values with uncertainties

Plujko

Gorbachenko

Capote

et al. 2018

Atomic Data and Nuclear Data Tables

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Updated values and corresponding uncertainties of Isovector Giant Dipole Resonance (GDR) parameters which are obtained by the least-squares fitting of theoretical photoabsorption cross sections to experimental data are presented. The theoretical photoabsorption cross sections are taken as a sum of the components corresponding to the excitation of the GDR and quasideuteron photodisintegration. The current compilation is an extension and improvement of the earlier compilations of Lorentzian parameters for ground-state photoneutron and photoabsorption cross sections and covers experimental data made available up• GDR parameters were added for 271 datasets, including 24 new isotopes that were absent previously, i.e.• The GDR values for 40 datasets were corrected by revising the energy interval of fitting and modifying the uncertainty estimates.• The GDR parameters from 8 datasets, namely 15 N, 19 F, 26 Mg, 51 V, 59 Co, 127 I, 141 Pr, 197 Au were excluded due to the poor quality of the fit to experimental data.

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Section: Theoretical Basis and Assumptionsmentioning

confidence: 99%

“…a Standard Lorentzian (SLO) model and a Simplified version of the Modified Lorentzian (SMLO) approach [2,3,17,35].…”

Section: Theoretical Basis and Assumptionsmentioning

confidence: 99%

Section: Introduction and General Description Of The Updatesmentioning

confidence: 99%

See 1 more Smart Citation

Giant dipole resonance parameters of ground-state photoabsorption: Experimental values with uncertainties

Plujko

Gorbachenko

Capote

et al. 2018

Atomic Data and Nuclear Data Tables

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show abstract

“…The photonuclear data near the peaks of the GDR can be fitted by Lorentz, Breit-Wigner or Gaussian functions equally well, but their low-and high-energy tails differ significantly [24,134]. Lorentz and Breit-Wigner shapes of the photoabsorption cross sections can be derived from different theoretical approaches [7,135]. The Lorentzian shape can be transformed to a Breit-Wigner form but with a shape width that depends on the photon energy, resonance energy and width of the Lorentzian [106].…”

Section: Introductionmentioning

confidence: 99%

Reference database for photon strength functions

et al. 2019

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Photon strength functions describing the average response of the nucleus to an electromagnetic probe are key input information in the theoretical modelling of nuclear reactions. Consequently they are important for a wide range of fields such as nuclear structure, nuclear astrophysics, medical isotope production, fission and fusion reactor technologies. They are also sources of information for widely used reaction libraries such as the IAEA Reference Input Parameter Library and evaluated data files such as EGAF.arXiv:1910.06966v1 [nucl-ex] 15 Oct 2019 Fig. 1 (Color online) Schematic representation on how NLDs and PSFs are extracted from the primary γ-ray spectrum. The firstgeneration γ-ray distribution (yellow triangle) is given by the product of the level density ρ(E i − E γ ) and the γ-ray transmission coefficient T γ (E γ ). All values of the elements of the ρ(E i − E γ ) and T γ (E γ ) vectors are allowed to vary in order to give the best fit to the P(E γ , E i ) landscape.

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“…4 There are four of most used phenomenological models (see Refs. The phenomenological models near GDR energy of the RSF are mainly different in the expressions for widthΓ (E γ ), which is governed by the description of the collective state damping.…”

Section: Introductionmentioning

confidence: 99%

Lorentzian-Like Models of E1 Radiative Strength Functions

Plujko

Gorbachenko

Kulich

2009

Int. J. Mod. Phys. E

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Photoabsorption cross sections and dipole γ-decay strength functions are calculated and compared with experimental data to test Lorentzian-like models of their description in the middle-weight and heavy atomic nuclei. Approaches with asymmetric shape of the radiative strength function are recommended for overall estimation of the dipole γstrengths. The ready-to-use table of giant dipole resonance parameters and their errors are obtained from fitting the theoretical calculations for photoabsorption cross sections to the experimental data. Systematics for giant dipole resonance parameters are given.

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The Simplified Description of Dipole Radiative Strength Function

Cited by 7 publications

References 2 publications

Giant dipole resonance parameters of ground-state photoabsorption: Experimental values with uncertainties

Giant dipole resonance parameters of ground-state photoabsorption: Experimental values with uncertainties

Reference database for photon strength functions

Lorentzian-Like Models of E1 Radiative Strength Functions

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