Nuclear Structure Effects in Internal Conversion

Church, E. L.; Weneser, J.

doi:10.1146/annurev.ns.10.120160.001205

Cited by 182 publications

(51 citation statements)

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“…Test calculations were made for the H-like ions of 209 Bi. Our present purpose is to show that the application of the classical theory of anomalous internal conversion [13,14] gives us the proper tool for adequate description of the Bohr-Weisskopf effect, also offering the way of extracting the unique information about the nuclear radii. To this end, we consider the HFS for the s-electronic states.…”

Section: Introductionmentioning

confidence: 99%

The theory of the Bohr–Weisskopf effect in the hyperfine structure

Karpeshin

Trzhaskovskaya

2015

Nuclear Physics A

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For twenty years research into the anomalies in the HF spectra was going in a wrong direction in fighting the Bohr-Weisskopf effect. As way out, we propose the model-independent way, which enables the nuclear radii and their moments to be obtained from the hyper-fine splitting. The way is based on analogy of HFS to internal conversion coefficients, and the Bohr-Weisskopf effect -to the anomalies in the internal conversion coefficients. It is shown that the parameters which can be extracted from the data are the even nuclear moments of the magnetization distribution. The radii R 2 and (for the first time) R 4 are obtained in this way by analysis of the experimental HFS for the H-and Li-like ions of 209 Bi. The critical prediction is made concerning the HFS for the 2p 1 2 state. The moments may be determined in this way only if the higher QED effects are properly taken into account. Therefore, this set of the parameters form a basis of a strict QED test. Experimental recommendations are given, aimed at retrieving data on the HFS values for a set of a few-electron configurations of various atoms.

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Section: Introductionmentioning

confidence: 99%

The theory of the Bohr–Weisskopf effect in the hyperfine structure

Karpeshin

Trzhaskovskaya

2015

Nuclear Physics A

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“…The effect of nuclear deformation on the ICC was studied in [17,18,19]. The authors [17,18] Os nuclei exhibiting high quadrupole moments.…”

Section: Nuclear Deformation and Nonsphericitymentioning

confidence: 99%

“…for spherical nucleus) revealed a negligible change of ∼10 −2 %. In [19], also the effect of magnetic dipole moment was investigated and found to be negligible. It should be kept in mind that the transitions in deformed nuclei are often hindered.…”

Section: Nuclear Deformation and Nonsphericitymentioning

confidence: 99%

On the reliability of the theoretical internal conversion coefficients

Ryšavý

Dragoun

2000

J. Phys. G: Nucl. Part. Phys.

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“…Internal pair conversion and pair emission in monopole transitions have been extensively treated in the literature, although with emphasis on low-energy transitions of at most a few MeV [11,12]. In the point-nucleus approximation the monopole transition rate pO is given by [13] …”

Section: The Giant Monopole Strength Functionmentioning

confidence: 99%

Giant monopole resonances in the statistical model

Montoya

Schadmand

Diószegi

et al. 1991

Z. Physik A - Hadrons and Nuclei

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The strength functions for e+-e-pair decay of the isoscalar and isovector giant monopole resonances in highly excited nuclei are derived and used in a statistical model calculation of the e § -pair energy spectrum from compound nuclear decay in 11~ following a fusion evaporation reaction. This result is then compared to the e § spectrum derived from internal pair decay of the giant dipole and giant quadrupole resonances. The computation shows that the pair decay from the excited-state GDR dominates the pair spectrum over the region of all giant resonances, exceeding L=0 transitions by at least a factor of ten. We also compute the angular correlations between e + and e-for the L=0, L= 1 and L=2 transitions and estimate their power to discriminate between the various multipolarities.

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Nuclear Structure Effects in Internal Conversion

Cited by 182 publications

References 0 publications

The theory of the Bohr–Weisskopf effect in the hyperfine structure

The theory of the Bohr–Weisskopf effect in the hyperfine structure

On the reliability of the theoretical internal conversion coefficients

Giant monopole resonances in the statistical model

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