Production and decay properties of the lightest osmium isotopes
Journal article, 2026
The production of 159,160,161Os and 159,160,161Re was investigated in experiments performed at the Accelerator Laboratory of the University of Jyv & auml;skyl & auml;. The nuclei of interest were produced using fusion-evaporation reactions induced by beams of 275-353 MeV 58Ni ions bombarding a 106Cd target. The evaporation residues were separated in flight using the recoil separator MARA and implanted into a double-sided silicon strip detector, which was used to measure their decays. Cross sections for the production of these nuclides were measured and the relative population of the 8+ isomeric states and ground states of the N=84 isotones 156Hf, 158W, and 160Os were deduced. New decay chains assigned to 160Os were identified at beam energies of 310 and 330 MeV. These findings are compared with previous studies claiming the observation of 160Os and 156W. The alpha decays of 161Os were observed, confirming previous results for this nuclide and its 9-decaying daughter, 157W. The alpha-decay branch of 159Re was also confirmed, but no delayed decays of this nuclide were observed that would be a signature of the 9 decays of the as yet unknown nuclide 159Os.
Author
A. D. Briscoe
University of Liverpool
University of Jyväskylä
R. D. Page
University of Liverpool
A. McCarter
University of Groningen
University of Liverpool
J. Uusitalo
University of Liverpool
University of Jyväskylä
S. Antalic
Comenius University in Bratislava
D. T. Joss
University of Liverpool
K. Auranen
University of Jyväskylä
M. A. M. AlAqeel
University of Liverpool
Jāmaat Al-Imam Mohammad bin Saud Al-Islamiyah
B. Alayed
Qassim University
B. Andel
Comenius University in Bratislava
H. Ayatollahzadeh
University of the West of Scotland
H. Badran
University of Jyväskylä
L. Barber
University of Manchester
G. Beeton
University of the West of Scotland
M. Birova
Slovak Academy of Sciences
V. Bogdanoff
University of Jyväskylä
J. G. Cubiss
University of Edinburgh
University of York
J. Deary
University of the West of Scotland
U. Forsberg
University of Jyväskylä
T. Grahn
University of Jyväskylä
P. T. Greenlees
University of Jyväskylä
J. B. Hilton
University of Jyväskylä
University of Liverpool
A. Illana
Complutense University
University of Jyväskylä
Henna Joukainen
Subatomic, High Energy and Plasma Physics 1
R. Julin
University of Jyväskylä
H. Jutila
University of Jyväskylä
J. M. Keatings
University of the West of Scotland
M. Labiche
Science and Technology Facilities Council (STFC)
M. Leino
University of Jyväskylä
M. C. Lewis
University of Liverpool
J. Louko
University of Jyväskylä
M. Luoma
University of Jyväskylä
I. Martel
University of Huelva
University of Liverpool
P. Mosat
Comenius University in Bratislava
S. N. Nathaniel
University of Liverpool
O. Neuvonen
University of Jyväskylä
D. O'Donnell
University of the West of Scotland
J. Ojala
University of Jyväskylä
C. A. A. Page
University of York
J. Pakarinen
University of Jyväskylä
P. Papadakis
Science and Technology Facilities Council (STFC)
E. Parr
University of Liverpool
J. Partanen
University of Jyväskylä
A. M. Plaza
University of Tokyo
University of Liverpool
University of Jyväskylä
P. Rahkila
University of Jyväskylä
E. Rey-herme
University Paris-Saclay
P. Ruotsalainen
University of Jyväskylä
J. Saren
University of Jyväskylä
J. Smallcombe
Japan Atomic Energy Agency
University of Liverpool
J. F. Smith
University of the West of Scotland
J. Sorri
University of Oulu
Radiation and Nuclear Safety Authority
C. M. Sullivan
University of Liverpool
S. Szwec
University of Jyväskylä
H. Tann
University of Jyväskylä
University of Liverpool
A. Tolosa Delgado
University of Jyväskylä
E. Uusikyla
University of Jyväskylä
L. Waring
University of Liverpool
G. L. Zimba
University of Jyväskylä
Louisiana State University
Physical Review C
24699985 (ISSN) 24699993 (eISSN)
Vol. 113 4 044317Subject Categories (SSIF 2025)
Subatomic Physics
DOI
10.1103/5rxb-bscn