Phys. Rev. C 105, 024307 (2022) - Prospects for studying the effect of electronic screening on $\ensuremath{\alpha}$ decay in storage rings

Prospects for studying the effect of electronic screening on $α$ decay in storage rings

F. F. Karpeshin, M. B. Trzhaskovskaya, and L. F. Vitushkin

Phys. Rev. C 105, 024307 – Published 10 February 2022

Abstract

Study of the role of electron screening in $α$ decay is advanced, aimed at experimental testing in storage rings. To this end, systematic calculation of the effect in heavy ions of the nuclei within the Ra to Po domain of $α$ emitters is conducted using the adiabatic approach. The effect obtained is to slow the decay down by an amount within a percent value. It is of the opposite sign compared to predictions by the conventional frozen shell model. The reason for the divergence is pointed out. Testing this difference experimentally in storage ring facilities is discussed.

Received 14 May 2021
Revised 14 December 2021
Accepted 10 January 2022

DOI:https://doi.org/10.1103/PhysRevC.105.024307

©2022 American Physical Society

Physics Subject Headings (PhySH)

Alpha decay Nuclear & electron resonance Nuclear astrophysics Nuclear structure & decays

Nuclear PhysicsAtomic, Molecular & OpticalInterdisciplinary PhysicsGeneral Physics

Authors & Affiliations

F. F. Karpeshin ^*

D. I. Mendeleyev Institute for Metrology, 190005 Saint-Petersburg, Russia

M. B. Trzhaskovskaya ^†

National Research Center “Kurchatov Institute”—Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningradskaya Oblast, Russia

L. F. Vitushkin

D. I. Mendeleyev Institute for Metrology, 190005 Saint-Petersburg, Russia

^*fkarpeshin@gmail.com
^†Deceased.

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Issue

Vol. 105, Iss. 2 — February 2022

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