Magicity versus Superfluidity around 28O viewed from the Study of 30F
Artikel i vetenskaplig tidskrift, 2024
The neutron-rich unbound fluorine isotope30F21has been observed for the first time by measuring itsneutron decay at the SAMURAI spectrometer (RIBF, RIKEN) in the quasifree proton knockout reactionof31Ne nuclei at235MeV=nucleon. The mass and thus one-neutron-separation energy of30F has been determined to beSn 1/4 -47258 & eth;stat & THORN;33 & eth;sys & THORN;keV from the measurement of its invariant-massspectrum. The absence of a sharp drop inSn & eth;30F & THORN;shows that the"magic"N 1/4 20shell gap is not restoredclose to28O, which is in agreement with our shell-model calculations that predict a near degeneracybetween the neutrondandfporbitals, with the1p3=2and1p1=2orbitals becoming more bound than the0f7=2one. This degeneracy and reordering of orbitals has two potential consequences:28O behaves like astrongly superfluid nucleus with neutron pairs scattering across shells, and both29;31F appear to be goodtwo-neutron halo-nucleus candidates
Författare
J. Kahlbow
Technische Universität Darmstadt
Massachusetts Institute of Technology (MIT)
RIKEN
T. Aumann
Helmholtz Forschungsakademie Hessen für FAIR (HFHF)
GSI Helmholtzzentrum Schwerionenforschung
Technische Universität Darmstadt
O. Sorlin
Grand Accelerateur Natl Ions Lourds GANIL
Y. Kondo
Tokyo Institute of Technology
T. Nakamura
Tokyo Institute of Technology
F. Nowacki
Université de Strasbourg
A. Revel
Univ Caen BasseNormandie
Grand Accelerateur Natl Ions Lourds GANIL
N. L. Achouri
Univ Caen BasseNormandie
H. Al Falou
Universite Libanaise
L. Atar
Technische Universität Darmstadt
H. Baba
RIKEN
K. Boretzky
GSI Helmholtzzentrum Schwerionenforschung
C. Caesar
GSI Helmholtzzentrum Schwerionenforschung
Technische Universität Darmstadt
D. Calvet
Université Paris-Saclay
H. Chae
Institute for Basic Science - Korea (IBS)
N. Chiga
RIKEN
A. Corsi
Université Paris-Saclay
F. Delaunay
Univ Caen BasseNormandie
A. Delbart
Université Paris-Saclay
Q. Deshayes
Univ Caen BasseNormandie
Z. Dombradi
HUN REN Inst Nucl Res
C. A. Douma
Rijksuniversiteit Groningen
Z. Elekes
HUN REN Inst Nucl Res
I. Gasparic
RIKEN
Ruder Boskovic Institute
J. -m. Gheller
Université Paris-Saclay
J. Gibelin
Univ Caen BasseNormandie
A. Gillibert
Université Paris-Saclay
M. N. Harakeh
GSI Helmholtzzentrum Schwerionenforschung
Rijksuniversiteit Groningen
A. Hirayama
Tokyo Institute of Technology
M. Holl
Rijksuniversiteit Groningen
A. Horvat
Eötvös Loránd University (ELTE)
Rijksuniversiteit Groningen
J. . W. Hwang
Seoul National University
T. Isobe
RIKEN
N. Kalantar-Nayestanaki
Rijksuniversiteit Groningen
S. Kawase
Kyushu University
S. Kim
Seoul National University
K. Kisamori
RIKEN
T. Kobayashi
Tohoku University
D. Koerper
GSI Helmholtzzentrum Schwerionenforschung
S. Koyama
University of Tokyo
I. Kuti
HUN REN Inst Nucl Res
V. Lapoux
Université Paris-Saclay
Simon Lindberg
Chalmers, Fysik, Subatomär fysik och plasmafysik
F. M. Marques
Univ Caen BasseNormandie
S. Masuoka
University of Tokyo
J. Mayer
Universität zu Köln
K. Miki
Michigan State University
T. Murakami
Kyoto University
M. Najafi
Rijksuniversiteit Groningen
K. Nakano
Kyushu University
N. Nakatsuka
Kyoto University
Thomas Nilsson
Chalmers, Fysik
A. Obertelli
Université Paris-Saclay
N. A. Orr
Univ Caen BasseNormandie
H. Otsu
RIKEN
V. Panin
RIKEN
S. Paschalis
Technische Universität Darmstadt
D. M. Rossi
GSI Helmholtzzentrum Schwerionenforschung
Technische Universität Darmstadt
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
K. Shimada
Tokyo Institute of Technology
Y. Shimizu
RIKEN
H. Simon
GSI Helmholtzzentrum Schwerionenforschung
D. Sohler
HUN REN Inst Nucl Res
L. Stuhl
Institute for Basic Science - Korea (IBS)
GSI Helmholtzzentrum Schwerionenforschung
S. Takeuchi
Tokyo Institute of Technology
M. Tanaka
Osaka University
M. Thoennessen
Michigan State University
H. Tornqvist
GSI Helmholtzzentrum Schwerionenforschung
Technische Universität Darmstadt
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
H. Wang
RIKEN
Z. Yang
RIKEN
M. Yasuda
Tokyo Institute of Technology
K. Yoneda
RIKEN
Physical Review Letters
0031-9007 (ISSN) 1079-7114 (eISSN)
Vol. 133 8 082501Ämneskategorier
Subatomär fysik
DOI
10.1103/PhysRevLett.133.082501
PubMed
39241734