Vol. 6 No. 1 (2026): Issue 1
1-11
2026-04-01
Open Access

A rigid triaxial rotator approximation of odd nuclei with quadrupole and octupole deformations

M. S. Nadirbekov
Z. Y. Sodiqova
S. N. Kudiratov
DOI: https://doi.org/10.35938/JFAR-2026-1-00001

Received: 2026-02-04 03:45:01

Published: 2026-04-01

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Abstract

An approximation of a rigid asymmetric rotator for odd nuclei with quadrupole and
octupole deformations have been developed and applied to describe energy levels of
alternating-parity ground-state-band odd nuclei 161,163Dy, 223,225Th, 237U and 239Pu.
The general structure of the sequence of low alternating-parity energy levels in odd nuclei in
the lanthanide and actinide regions is reproduced, taking into account the K-mixing effect.
Furthermore, interactions with an even-even nucleus and an unpaired nucleon are taken into account.
In addition, the contribution of the unpaired nucleon to the collective motion of the entire system
is taken into account by the Coriolis interaction.

Keywords

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About the Authors

M. S. Nadirbekov
mnadirbekov@yandex.com
Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan, Tashkent, 100214, Uzbekistan
Z. Y. Sodiqova
zilolasodiqova28@gmail.com
Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan, Tashkent, 100214, Uzbekistan
S. N. Kudiratov
qudiratov227@mail.ru
Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan, Tashkent, 100214, Uzbekistan
 

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Copyright (c) 2026 M. S. Nadirbekov, Z. Y. Sodiqova, S. N. Kudiratov (Author)

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How to Cite

1.
Nadirbekov MS, Sodiqova ZY, Kudiratov SN. A rigid triaxial rotator approximation of odd nuclei with quadrupole and octupole deformations. JFAR [Internet]. 2026 Apr. 1 [cited 2026 Aug. 19];6(1):1-11. Available from: https://new.jfar.uz/index.php/jour/article/view/61
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