A1 Journal article (refereed)
The empirical shell gap revisited in light of recent high precision mass spectrometry data (2023)

Manea, V., Mougeot, M., & Lunney, D. (2023). The empirical shell gap revisited in light of recent high precision mass spectrometry data. European Physical Journal A, 59(2), Article 22. https://doi.org/10.1140/epja/s10050-023-00929-5

JYU authors or editors

Publication details

All authors or editors: Manea, Vladimir; Mougeot, Maxime; Lunney, David

Journal or series: European Physical Journal A

ISSN: 1434-6001

eISSN: 1434-601X

Publication year: 2023

Publication date: 10/02/2023

Volume: 59

Issue number: 2

Article number: 22

Publisher: Springer

Publication country: Germany

Publication language: English

DOI: https://doi.org/10.1140/epja/s10050-023-00929-5

Publication open access: Not open

Publication channel open access: 

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/93750

Abstract

We present an updated view on the phenomenon of mutually enhanced magicity based on the current experimental knowledge of atomic masses, including some recent precision measurements performed with the ISOLTRAP mass spectrometer at ISOLDE/CERN. We discuss the trends of the proton and neutron empirical shell gaps computed either in the standard approach, along chains corresponding to magic numbers of protons and neutrons, respectively, or along the neighbouring isotonic chains differing by two nucleon numbers. We show that in the latter case the empirical shell-gap trend is anti-correlated to the one observed along the magic-number chains. We perform a theoretical investigation of the origin of this feature by an analysis of the contributions from the monopole, pairing and quadrupole interactions, focusing on the phenomenon of mutually enhanced magicity. We emphasize the role of quadrupole correlations for explaining the full range of experimental information.

Keywords: nuclear physics; nucleons; mass spectrometry

Free keywords: experimental physics

Contributing organizations

Ministry reporting: Yes

VIRTA submission year: 2023

JUFO rating: 2