論文

本文へのリンクあり
2021年11月10日

Coexisting normal and intruder configurations in 32Mg

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
  • N. Kitamura
  • K. Wimmer
  • A. Poves
  • N. Shimizu
  • J. A. Tostevin
  • V. M. Bader
  • C. Bancroft
  • D. Barofsky
  • T. Baugher
  • D. Bazin
  • J. S. Berryman
  • V. Bildstein
  • A. Gade
  • N. Imai
  • T. Kröll
  • C. Langer
  • J. Lloyd
  • E. Lunderberg
  • F. Nowacki
  • G. Perdikakis
  • F. Recchia
  • T. Redpath
  • S. Saenz
  • D. Smalley
  • S. R. Stroberg
  • Y. Utsuno
  • D. Weisshaar
  • A. Westerberg
  • 全て表示

822
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.physletb.2021.136682

Situated in the so-called “island of inversion,” the nucleus 32Mg is considered as an archetypal example of the disappearance of magicity at N=20. We report on high statistics in-beam spectroscopy of 32Mg with a unique approach, in that two direct reaction probes with different sensitivities to the underlying nuclear structure are employed at the same time. More specifically, states in 32Mg were populated by knockout reactions starting from 33Mg and 34Si, lying inside and outside the island of inversion, respectively. The momentum distributions of the reaction residues and the cross sections leading to the individual final states were confronted with eikonal-based reaction calculations, yielding a significantly updated level scheme for 32Mg and spin-parity assignments. By fully exploiting observables obtained in this measurement, a variety of structures coexisting in 32Mg was unraveled. Comparisons with theoretical predictions based on shell-model overlaps allowed for clear discrimination between different structural models, revealing that the complete theoretical description of this key nucleus is yet to be achieved.

リンク情報
DOI
https://doi.org/10.1016/j.physletb.2021.136682
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85115964917&origin=inward 本文へのリンクあり
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85115964917&origin=inward
ID情報
  • DOI : 10.1016/j.physletb.2021.136682
  • ISSN : 0370-2693
  • SCOPUS ID : 85115964917

エクスポート
BibTeX RIS