Электронный каталог

Статья

Seif, W.M.
Enhanced *a Decays to Negative-Parity States in Even-Even Nuclei with Octupole Deformation / W.M.Seif, A.Adel, N.V.Antonenko, G.G.Adamian // Physical Review C [Electronic resource]. – 2023. – Vol.107, No.4. – P.044601. – URL: https://doi.org/10.1103/PhysRevC.107.044601. – Bibliogr.:74.

The α decays of even-even Ra, Th, U, and Pu isotopes to ground and excited states of daughter nuclei with neutron numbers of N=130–140 are investigated. These nuclei show some enhanced α-branching ratios to negative-parity states (1−, 3−), compared with the decays to positive-parity states (4+) of comparable energy. This enhancement correlates with appearance of static octupole deformation, rather than spherical nuclear shapes or dynamic asymmetric vibrational states. The highly enhanced branching ratios occur for α decays to the 1− and 3− states of the Ra isotopes with N=134, 136, 138, then to 1− state in Th (N=134–140) and to the 3− state in Rn (N=132–136) isotopes.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 341.1д - Альфа-распад, протонный распад и другие виды распада
Бюллетени = 1/023