Observation and spectroscopy of the proton-unbound nucleus 21Al
Artikel i vetenskaplig tidskrift, 2024
We report on the observation of the previously unknown isotope Al-21, the first unbound aluminum isotope located beyond the proton dripline. The Al-21 nucleus decays by one-proton (1p) emission, and its in-flight decays were detected by tracking trajectories of the decay products with silicon microstrip detectors. The 1p-emission processes were studied by analyzing the measured angular correlations of decay products Mg-20+p. The 1p-decay energies of the ground and low-lying excited states of Al-21, its mass excess, and the proton separation energy value S-p=-1.15(-0.07)(+0.10) MeV were determined.
Författare
D. Kostyleva
Helmholtz
X. -D. Xu
Chinese Academy of Sciences
Helmholtz
I. Mukha
Helmholtz
L. Acosta
Consejo Superior de Investigaciones Científicas (CSIC)
Universidad Nacional Autónoma de México
M. Bajzek
Helmholtz
Sveučilište u Zagrebu
Justus-Liebig-Universität Gießen
E. Casarejos
Universidad de Vigo
A. A. Ciemny
Uniwersytet Warszawski
D. Cortina-Gil
Universidade de Santiagode Compostela
W. Dominik
Uniwersytet Warszawski
J. A. Duenas
Universidad de Huelva
J. M. Espino
Universidad de Sevilla
A. Estrade
University of Edinburgh
Central Michigan University
F. Farinon
Helmholtz
A. Fomichev
Joint Institute for Nuclear Research (JINR)
H. Geissel
Justus-Liebig-Universität Gießen
Helmholtz
J. Gomez-Camacho
Universidad de Sevilla
A. Gorshkov
Joint Institute for Nuclear Research (JINR)
L. V. Grigorenko
Joint Institute for Nuclear Research (JINR)
National Research Nuclear University
National Research Centre "Kurchatov Institute"
Z. Janas
Uniwersytet Warszawski
G. Kaminski
Uniwersytet Warszawski
Joint Institute for Nuclear Research (JINR)
O. Kiselev
Helmholtz
R. Knoebel
Justus-Liebig-Universität Gießen
Helmholtz
A. A. Korsheninnikov
National Research Centre "Kurchatov Institute"
S. Krupko
Joint Institute for Nuclear Research (JINR)
M. Kuich
Uniwersytet Warszawski
Politechnika Warszawska
N. Kurz
Helmholtz
Yu. A. Litvinov
Helmholtz
G. Marquinez-Duran
Universidad de Huelva
I. Martel
Universidad de Huelva
C. Mazzocchi
Uniwersytet Warszawski
E. Yu. Nikolskii
Joint Institute for Nuclear Research (JINR)
National Research Centre "Kurchatov Institute"
C. Nociforo
Helmholtz
A. K. Orduz
Grand Accelerateur Nacl Ions Lourds GANIL
M. Pfuetzner
Helmholtz
Uniwersytet Warszawski
S. Pietri
Helmholtz
M. Pomorski
Uniwersytet Warszawski
A. Prochazka
Helmholtz
C. Rodriguez-Tajes
Universidade de Santiagode Compostela
S. Rymzhanova
Joint Institute for Nuclear Research (JINR)
A. M. Sanchez-Benitez
Universidad de Huelva
C. Scheidenberger
GSI Helmholtz Ctr Heavy Ion Res
H. Simon
Helmholtz
B. Sitar
Univerzita Komenskeho v Bratislave
R. Slepnev
Joint Institute for Nuclear Research (JINR)
M. Stanoiu
IFIN HH
P. Strmen
Univerzita Komenskeho v Bratislave
K. Suemmerer
Helmholtz
I. Szarka
Univerzita Komenskeho v Bratislave
M. Takechi
Helmholtz
Y. K. Tanaka
University of Tokyo
Helmholtz
H. Weick
Helmholtz
J. S. Winfield
Helmholtz
P. J. Woods
University of Edinburgh
Mikhail Zhukov
Chalmers, Fysik
Physical Review C
24699985 (ISSN) 24699993 (eISSN)
Vol. 110 3 L031301Ämneskategorier
Subatomär fysik
DOI
10.1103/PhysRevC.110.L031301