Mise en évidence de deux classes de transitions E1 dans les noyaux déformés des terres rares

Vergnes, M.

doi:10.1016/0029-5582(62)90392-9

Cited by 20 publications

(2 citation statements)

References 29 publications

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“…same rotational band, but those for transitions to different rotational bands can differ by an order of magnitude or more. [42][43][44][45][46] This is especially true if some of the transitions are iT-forbidden.…”

Section: Iil Development Of Level Schemementioning

confidence: 99%

Level Scheme ofSm153Based on (n, γ), (
Smither
¹
,
Bieber
²
,
Egidy
³

et al. 1969
Phys. Rev.

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suspect that a satisfactory explanation of the highly retarded decay to the first two 2+ levels will need to take into consideration the detailed shell-model configurations of both the parent and daughter states. ACKNOWLEDGMENTSWe are indebted to E. B. Shera and R. K. Sheline for helpful discussions and comments on the manuscript. Illuminating comments were also received from G. Scharff-Goldhaber and J. B. Ball. Finally, we wish to thank the LASL cyclotron staff for providing the proton-bombardment facilities.deformed nuclei (^4>154). The level schemes of the two adjacent even-Z, even-iV nuclei, 152 Sm and 154 Sm, exhibit distorted but easily recognized ground-state rotational bands which suggest moderately strong deformations for these nuclei. The 153 Sm nucleus is in fact the lightest even-Z, odd-N samarium isotope that can, with reasonable certainty, be expected to exhibit a level scheme consistent with the Nilsson model for an PHYSICAL REVIEW BENT CRYSTAL 1633 r r y BEAM POST COLLIMATOR No I DETECTOR -7.7 m Y ENERGY CONSTANT 9 S. G. Nilsson, Kgl. Danske Videnskab. Selskab, Mat.-Fys.

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Section: Iil Development Of Level Schemementioning

confidence: 99%

Level Scheme ofSm153Based on (n, γ), (
Smither
¹
,
Bieber
²
,
Egidy
³

et al. 1969
Phys. Rev.

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“…The retardation of EI transitions in deformed nu<:;lei has been the subject of several papers [1][2][3][4][5][6][7] in the past few years .. The reduction factor E of a tra,nsition is defined as equal to the ratio of the theoretical to the experimental tninsitio~ probabilities.…”

Section: Introductionmentioning

confidence: 99%

Influence of pairing correlations on E1 transition probabilities in odd-mass deformed, rare-earth nuclei

Vergnes

Rasmussen

1965

Nuclear Physics

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Theoretical calculations of E1 and E3 transition rates for deformed rare-earth nuclei are made, taking into account the retarding effect of pairing correlations. It is found that pairing correlation correction factors R improve the general agreement with experiment for one class ,of transition, viz. E1 with LlK = ± 1. However, the factors R generally cause poorer agreement for E1 with LlK = 0 and for E3 than results from simple use of Nilsson single-particle wave functions with no pairing corrections. The importance of taking into account wave function ~omponents admixed by the Corio lis coupling is illustrated by a calculation fitting the many E1' transition rates between two bands in Hf1" . 'It is further suggested that effects due to-ihreequasi-particle components (or, in other language, octopole phonon or' "effective charge" effects) are probably of great importance and deserve further study.

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Calcul des effets des corrélations de paires sur les transitions E1 dans les noyaux de masse impaire de la région des terres rares

Monsonego

Piepenbring

1964

Nuclear Physics

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Mise en évidence de deux classes de transitions E1 dans les noyaux déformés des terres rares

Cited by 20 publications

References 29 publications

Level Scheme ofSm153Based on (n, γ), (
Smither
¹
,
Bieber
²
,
Egidy
³

et al. 1969
Phys. Rev.

Level Scheme ofSm153Based on (n, γ), (
Smither
¹
,
Bieber
²
,
Egidy
³

et al. 1969
Phys. Rev.

Influence of pairing correlations on E1 transition probabilities in odd-mass deformed, rare-earth nuclei

Calcul des effets des corrélations de paires sur les transitions E1 dans les noyaux de masse impaire de la région des terres rares

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Mise en évidence de deux classes de transitions E1 dans les noyaux déformés des terres rares

Cited by 20 publications

References 29 publications

Level Scheme ofSm153Based on (n, γ), (Smither1, Bieber2, Egidy3 et al. 1969Phys. Rev.

Level Scheme ofSm153Based on (n, γ), (Smither1, Bieber2, Egidy3 et al. 1969Phys. Rev.

Influence of pairing correlations on E1 transition probabilities in odd-mass deformed, rare-earth nuclei

Calcul des effets des corrélations de paires sur les transitions E1 dans les noyaux de masse impaire de la région des terres rares

Contact Info

Product

Resources

About

Level Scheme ofSm153Based on (n, γ), (
Smither
¹
,
Bieber
²
,
Egidy
³

et al. 1969
Phys. Rev.

Level Scheme ofSm153Based on (n, γ), (
Smither
¹
,
Bieber
²
,
Egidy
³

et al. 1969
Phys. Rev.