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Comparison of DR modelE 2 transition probabilities from the 2+ state of theγ-vibrational band with experimental values

Сравнение модели Давыдова-Ростовского для вероятностеиE 2 переходов иэ 2+ состояния у-вибрационнои эоны с зксперименталяными величинами

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Il Nuovo Cimento A (1971-1996)

Summary

The ratios of theE 2 transition probabilities from the 2+ state of theγ-vibrational band to the 2+ and 0+ states of the groundstate rotational band in the rare-earth and actinide regions of the even-even nuclei are estimated using the asymmetric rotor model of Davydov and Rostovsky. The known experimentalB(E 2, 2+′→2+)/B(E 2, 2+′→0+) values for the above regions are compared with the theoretical estimates. It is observed that this model explains satisfactorily all the known experimental data except those of the platinum nuclei. An explanation for the disagreement in the platinum nuclei is given.

Riassunto

Si sono stimati i rapporti delle probabilità della transizioneE 2 dallo stato 2+ della banda vibrazionaleγ agli stati 2+ e 0+ della banda rotazionale dello stato fondamentale nelle regioni delle terre rare e degli attinidi dei nuclei pari-pari usando il modello di rotore asimmetrico di Davydov e Rostovsky. Si confrontano i noti valori sperimental diB(E 2, 2+′→2+)/B(E 2, 2+′→0+) nelle suddette regioni con le stime teoriche. Si osserva che questo modello spiega in modo soddisfacente tutti i dati sperimentali noti tranne quelli dei nuclei di platino. Si dà una spiegazione dell adiscordanza per i nuclei di platino.

Реэуме

Исполяэуя асимметричнуу роторнуу моделя Давыдова и Ростовского, были оценены отнощения вероятностеиE 2 переходов иэ 2+ состоянии у-вибрационнои эоны в 20+ и 0+ состояния основнои ротационнои эоны в четно-четных ядрах редкоэемелянои группы и группы актинидов. Иэвестные зксперименталяные величиныB(E 2; 2+′→2+)/B(E 2, 2+′→0+) для выщеукаэанных областеи сравнивалися с теоретическими оценками. Было получено, что зта моделя удовлетворителяно общясняет все иэвестные зксперименталяные данные, эа исклучением ядер платины. Приводится общяснение зтого расхоздения для ядер платины.

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Author notes

  1. R. Prasad

    Present address: Physics Section Z.H. College of Engineering and Technology, A.M.U., Aligarh, India

Authors and Affiliations

  1. Department of Physics, Aligarh Muslim University, Aligarh, India

    A. Augusthy, R. Prasad & M. L. Sehgal

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  3. M. L. Sehgal
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Augusthy, A., Prasad, R. & Sehgal, M.L. Comparison of DR modelE 2 transition probabilities from the 2+ state of theγ-vibrational band with experimental values. Nuov Cim A 12, 341–348 (1972). https://doi.org/10.1007/BF02729549

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