Evidence for the extinction of the N=20 neutron-shell closure for 32Mg from direct mass measurements
type: Dataset
description: The "island of inversion" around 32Mg is one of the most important paradigms for studying the disappearance of the stabilizing "magicity" of a shell closure. We present the first Penning-trap mass measurements of the exotic nuclides 29‑31Na and 30‑34Mg, which allow precise determination of the empirical shell gap for 32Mg. The new value of 1.10(3) MeV is the smallest observed shell gap for any nuclide with a canonical magic number.
landing page: 2469-9985
keyword: 20a38
keyword: binding-energies-and-masses
keyword: infoeu-reposemanticsarticle
keyword: journal-articles
keyword: physnexpphysics-physicsnuclear-experiment-nucl-ex
keyword: shell-model
issued: 2026-05-07T18:19:24.321915
modified: 2026-05-07T18:19:24.321920
language: en
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Evidence for the extinction of the N=20 neutron-shell closure for 32Mg from direct mass measurements
type: Distribution
format: HTML
access URL: https://in2p3.hal.science/in2p3-00920388
issued: 2026-05-07T18:19:24.326005
modified: 2026-05-07T18:19:24.314454