Семинар «Ядерная физика низких энергий»

(сектора № 1 и № 2 научного отдела теории атомного ядра)

Дата и время: вторник, 22 сентября 2020 г., в 11:00

Место: Онлайн конференция в Zoom, Лаборатория теоретической физики им. Н.Н. Боголюбова

Тема семинара: «Self-consistent calculation of the charge radii in the isotopic chain ⁵⁸⁻⁸²Cu»

Авторы: И. Н. Борзов^1,2, С. В. Толоконников^1,2

1 — НИЦ “Курчатовский институт”, Москва, Россия
2 — Лаборатория теоретической физики им. Н. Н. Боголюбова, ОИЯИ
3 — Московский физико-технический институт

Докладчик: И. Н. Борзов

Аннотация:

The charge radii in a long isotopic chain of copper, including exotic nuclei ⁵⁸Cu, ⁷⁹Cu close to doubly-magic ⁵⁶Ni, ⁷⁸Ni and nuclei near magic sub-shells N = 32, 34, 40 are calculated. The self-consistent theory of finite Fermi systems and the family of density energy functionals proposed by Fayans et al. (DF3, DF3-a) are used. A comparison is made with experiment and similar calculations in self-consistent models using new versions of the Fayans functional with parameters obtained using the extended optimization protocol: Fy (std) and Fy (HFB, ∇r), as well as with calculations in the renormalization group method and with density-dependent spinorbit interaction. The weakening of the even-odd “staggering” in isotopes approaching the semi-magic nucleus of ⁷⁹Cu found in ISOLDE-CERN experiments is analyzed. The correlation of the isotopic dependences of charge radii and total beta decay energies is shown.