Intruder configurations in 29Ne at the transition into the island of inversion: Detailed structure study of 28Ne
Journal article, 2023
Detailed γ-ray spectroscopy of the exotic neon isotope 28Ne has been performed for the first time using the one-neutron removal reaction from 29Ne on a liquid hydrogen target at 240 MeV/nucleon. Based on an analysis of parallel momentum distributions, a level scheme with spin-parity assignments has been constructed for 28Ne and the negative-parity states are identified for the first time. The measured partial cross sections and momentum distributions reveal a significant intruder p-wave strength providing evidence of the breakdown of the N=20 and N=28 shell gaps. Only a weak, possible f-wave strength was observed to bound final states. Large-scale shell-model calculations with different effective interactions do not reproduce the large p-wave and small f-wave strength observed experimentally, indicating an ongoing challenge for a complete theoretical description of the transition into the island of inversion along the Ne isotopic chain.
Island of inversion
Shell evolution
In-beam γ-ray spectroscopy
Author
H. Wang
RIKEN
M. Yasuda
Tokyo Institute of Technology
Y. Kondo
Tokyo Institute of Technology
T. Nakamura
Tokyo Institute of Technology
J. A. Tostevin
University of Surrey
Tokyo Institute of Technology
K. Ogata
Kyushu University
Osaka University
T. Otsuka
University of Tokyo
RIKEN
A. Poves
Universidad Autonoma de Madrid (UAM)
N. Shimizu
University of Tsukuba
K. Yoshida
Japan Atomic Energy Agency
N. L. Achouri
Laboratoire de Physique Corpusculaire de Caen
H. Al Falou
Lebanese University
L. Atar
Technische Universität Darmstadt
T. Aumann
Technische Universität Darmstadt
Helmholtz
H. Baba
RIKEN
K. Boretzky
Helmholtz
C. Caesar
Helmholtz
D. Calvet
University Paris-Saclay
H. Chae
Institute for Basic Science
N. Chiga
RIKEN
A. Corsi
University Paris-Saclay
H. L. Crawford
Lawrence Berkeley National Laboratory
F. Delaunay
Laboratoire de Physique Corpusculaire de Caen
A. Delbart
University Paris-Saclay
Q. Deshayes
Laboratoire de Physique Corpusculaire de Caen
Zs Dombrádi
Hungarian Academy of Sciences
C. A. Douma
University of Groningen
Z. Elekes
Hungarian Academy of Sciences
P. Fallon
Lawrence Berkeley National Laboratory
I. Gasparic
Helmholtz
Ruder Boskovic Institute
J. M. Gheller
University Paris-Saclay
J. Gibelin
Laboratoire de Physique Corpusculaire de Caen
A. Gillibert
University Paris-Saclay
M. N. Harakeh
University of Groningen
A. Hirayama
Tokyo Institute of Technology
C. R. Hoffman
Argonne National Laboratory
M. Holl
Technische Universität Darmstadt
A. Horvat
Technische Universität Darmstadt
Horváth
Eötvös Loránd University (ELTE)
J. W. Hwang
Institute for Basic Science
T. Isobe
RIKEN
J. Kahlbow
Technische Universität Darmstadt
N. Kalantar-Nayestanaki
University of Groningen
S. Kawase
Kyushu University
S. Kim
Institute for Basic Science
K. Kisamori
RIKEN
T. Kobayashi
Tohoku University
D. Körper
Helmholtz
S. Koyama
University of Tokyo
I. Kuti
Hungarian Academy of Sciences
V. Lapoux
University Paris-Saclay
S. Lindberg
F. M. Marqués
Laboratoire de Physique Corpusculaire de Caen
S. Masuoka
University of Tokyo
J. Mayer
University of Cologne
K. Miki
Michigan State University
T. Murakami
Kyoto University
M. A. Najafi
University of Groningen
K. Nakano
Kyushu University
N. Nakatsuka
Kyoto University
Thomas Nilsson
Chalmers, Physics
A. Obertelli
University Paris-Saclay
N. A. Orr
Laboratoire de Physique Corpusculaire de Caen
H. Otsu
RIKEN
T. Ozaki
Tokyo Institute of Technology
V. Panin
RIKEN
S. Paschalis
Technische Universität Darmstadt
A. Revel
University Paris-Saclay
Laboratoire de Physique Corpusculaire de Caen
Grand Accélérateur National d'Ions Lourds (GANIL)
D. Rossi
Technische Universität Darmstadt
Helmholtz
A. T. Saito
Tokyo Institute of Technology
T. Saito
University of Tokyo
M. Sasano
RIKEN
H. Sato
RIKEN
Y. Satou
Seoul National University
H. Scheit
Technische Universität Darmstadt
F. Schindler
Technische Universität Darmstadt
P. Schrock
University of Tokyo
M. Shikata
Tokyo Institute of Technology
Y. Shimizu
RIKEN
H. Simon
Helmholtz
D. Sohler
Hungarian Academy of Sciences
Olivier Sorlin
Grand Accélérateur National d'Ions Lourds (GANIL)
L. Stuhl
Institute for Basic Science
RIKEN
S. Takeuchi
Tokyo Institute of Technology
M. Tanaka
Osaka University
M. Thoennessen
Michigan State University
Hans Törnqvist
Technische Universität Darmstadt
Helmholtz
Y. Togano
Tokyo Institute of Technology
T. Tomai
Tokyo Institute of Technology
J. Tscheuschner
Technische Universität Darmstadt
J. Tsubota
Tokyo Institute of Technology
T. Uesaka
RIKEN
Z. Yang
RIKEN
K. Yoneda
RIKEN
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
0370-2693 (ISSN)
Vol. 843 138038Exotiska nukleära system vid gränsen för existens - fysik i frontlinjen med perspektiv mot FAIR
Swedish Research Council (VR) (2017-03839), 2018-01-01 -- 2021-12-31.
Subject Categories
Subatomic Physics
Roots
Basic sciences
DOI
10.1016/j.physletb.2023.138038