Электронный каталог

Книга (аналит. описание)

Mardyban, M.A.
Study of 0*+ and 8*- States in Even-Even &sup(250-260)No Iosotopes / M.A.Mardyban, V.O.Nesterenko. – Text : electronic // The 29th International Nuclear Physics Conference (INPC 2025), Daejeon, Republic of Korea, May 25-30, 2025 / Ed.: H.-C.Kim, S.Ahn, M.Kim, [et al.]. – Les Ulis Cedex : EDP Sciences, 2026. – P. 01014. – URL: https://doi.org/10.1051/epjconf/202637801014. – Bibliogr.: 28.

Low-lying K&sup(π) = 0*+ and isomeric 8*− states in even-even isotopes &sup(250−260)No are explored within the Quasiparticle Random-Phase Approximation (QRPA) method with Skyrme parametrization SLy4. The deformations, single-particle (s-p) spectra and pairing in the isotopes are inspected. The calculations predict a pronounced minimum in the neutron pairing at A=252, 254, which significantly affects the properties of 0*+ and 8*− states and leads to a correlation of their spectra. It is shown that 8*− isomers are basically low-energy two-quasiparticle (2qp) states. The appearance or absence of these isomers in &sup(250−260)No is explained as a combined effect of the s-p spectra and pairing. The collective 0+ states are predicted in all the isotopes as the lowest multipole non-rotational excitations. These states are interpreted as a superposition of pairing vibrations and β-vibrations. The results are in a reasonable agreement with available experimental data for &sup(252,254)No. – (EPJ Web of Conferences ; Vol. 378) .



ОИЯИ = ОИЯИ (JINR)2026
Спец.(статьи,препринты) = С 341 а - Различные модели ядер$
Спец.(статьи,препринты) = С 341.2в - Уровни ядер