Towards the Limits of Existence of Nuclear Structure: Observation and First Spectroscopy of the Isotope K-31 by Measuring Its Three-Proton Decay
Artikel i vetenskaplig tidskrift, 2019
The most remote isotope from the proton dripline (by 4 atomic mass units) has been observed: K-31. It is unbound with respect to three-proton (3p) emission, and its decays have been detected in flight by measuring the trajectories of all decay products using microstrip detectors. The 3p emission processes have been studied by the means of angular correlations of S-28 + 3p and the respective decay vertices. The energies of the previously unknown ground and excited states of K-31 have been determined. This provides its 3p separation energy value S-3p of -4.6(2) MeV. Upper half-life limits of 10 ps of the observed K-31 states have been derived from distributions of the measured decay vertices.
decay
isotopes
two-proton decay
protons
Författare
D. Kostyleva
Justus-Liebig-Universität Gießen
Helmholtz
I Mukha
Helmholtz
L. Acosta
Universidad Nacional Autonoma de Mexico
Istituto Nazionale di Fisica Nucleare
E. Casarejos
Universidad de Vigo
V Chudoba
Joint Institute for Nuclear Research (JINR)
Silesian University Opava
A. A. Ciemny
Uniwersytet Warszawski
W. Dominik
Uniwersytet Warszawski
J. A. Duenas
Universidad de Huelva
V Dunin
Joint Institute for Nuclear Research (JINR)
J. M. Espino
Universidad de Sevilla
A. Estrade
University of Edinburgh
F. Farinon
Helmholtz
A. Fomichev
Joint Institute for Nuclear Research (JINR)
H. Geissel
Justus-Liebig-Universität Gießen
Helmholtz
A. Gorshkov
Joint Institute for Nuclear Research (JINR)
Grigorenko
Joint Institute for Nuclear Research (JINR)
National Research Centre "Kurchatov Institute"
National Research Nuclear University
Z. Janas
Uniwersytet Warszawski
G. Kaminski
Uniwersytet Warszawski
Joint Institute for Nuclear Research (JINR)
O. Kiselev
Helmholtz
R. Knobel
Helmholtz
Justus-Liebig-Universität Gießen
S. Krupko
Joint Institute for Nuclear Research (JINR)
M. Kuich
Uniwersytet Warszawski
Politechnika Warszawska
Yu A. Litvinov
Helmholtz
G. Marquinez-Duran
Universidad de Huelva
I Martel
University of Liverpool
C. Mazzocchi
Uniwersytet Warszawski
C. Nociforo
Helmholtz
A. K. Orduz
Grand Accélérateur National d'Ions Lourds (GANIL)
M. Pfutzner
Uniwersytet Warszawski
Helmholtz
S. Pietri
Helmholtz
M. Pomorski
Uniwersytet Warszawski
A. Prochazka
Helmholtz
S. Rymzhanova
Joint Institute for Nuclear Research (JINR)
A. M. Sanchez-Benitez
Universidad de Huelva
C. Scheidenberger
Helmholtz
Justus-Liebig-Universität Gießen
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
I Szarka
Univerzita Komenskeho v Bratislave
M. Takechi
Helmholtz
Y. K. Tanaka
Helmholtz
University of Tokyo
H. Weick
Helmholtz
M. Winkler
Helmholtz
J. S. Winfield
Helmholtz
X. Xu
Helmholtz
Justus-Liebig-Universität Gießen
Chinese Academy of Sciences
Mikhail Zhukov
Chalmers, Fysik
Physical Review Letters
0031-9007 (ISSN) 1079-7114 (eISSN)
Vol. 123 9 092502Ämneskategorier
Acceleratorfysik och instrumentering
Subatomär fysik
Astronomi, astrofysik och kosmologi
DOI
10.1103/PhysRevLett.123.092502
PubMed
31524489