Production and decay properties of the lightest osmium isotopes
Artikel i vetenskaplig tidskrift, 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.

Författare

A. D. Briscoe

University of Liverpool

Jyväskylän Yliopisto

R. D. Page

University of Liverpool

A. McCarter

Rijksuniversiteit Groningen

University of Liverpool

J. Uusitalo

University of Liverpool

Jyväskylän Yliopisto

S. Antalic

Univerzita Komenskeho v Bratislave

D. T. Joss

University of Liverpool

K. Auranen

Jyväskylän Yliopisto

M. A. M. AlAqeel

University of Liverpool

Imam Muhammad Ibn Saud Islamic University

B. Alayed

Qassim University

B. Andel

Univerzita Komenskeho v Bratislave

H. Ayatollahzadeh

University of the West of Scotland

H. Badran

Jyväskylän Yliopisto

L. Barber

University of Manchester

G. Beeton

University of the West of Scotland

M. Birova

Slovak Academy of Sciences

V. Bogdanoff

Jyväskylän Yliopisto

J. G. Cubiss

University of Edinburgh

University of York

J. Deary

University of the West of Scotland

U. Forsberg

Jyväskylän Yliopisto

T. Grahn

Jyväskylän Yliopisto

P. T. Greenlees

Jyväskylän Yliopisto

J. B. Hilton

Jyväskylän Yliopisto

University of Liverpool

A. Illana

Universidad Complutense de Madrid

Jyväskylän Yliopisto

Henna Joukainen

Subatomär, högenergi- och plasmafysik 1

R. Julin

Jyväskylän Yliopisto

H. Jutila

Jyväskylän Yliopisto

J. M. Keatings

University of the West of Scotland

M. Labiche

Science and Technology Facilities Council (STFC)

M. Leino

Jyväskylän Yliopisto

M. C. Lewis

University of Liverpool

J. Louko

Jyväskylän Yliopisto

M. Luoma

Jyväskylän Yliopisto

I. Martel

Universidad de Huelva

University of Liverpool

P. Mosat

Univerzita Komenskeho v Bratislave

S. N. Nathaniel

University of Liverpool

O. Neuvonen

Jyväskylän Yliopisto

D. O'Donnell

University of the West of Scotland

J. Ojala

Jyväskylän Yliopisto

C. A. A. Page

University of York

J. Pakarinen

Jyväskylän Yliopisto

P. Papadakis

Science and Technology Facilities Council (STFC)

E. Parr

University of Liverpool

J. Partanen

Jyväskylän Yliopisto

A. M. Plaza

University of Tokyo

University of Liverpool

Jyväskylän Yliopisto

P. Rahkila

Jyväskylän Yliopisto

E. Rey-herme

Université Paris-Saclay

P. Ruotsalainen

Jyväskylän Yliopisto

J. Saren

Jyväskylän Yliopisto

J. Smallcombe

Japan Atomic Energy Agency

University of Liverpool

J. F. Smith

University of the West of Scotland

J. Sorri

Oulun Yliopisto

Radiation and Nuclear Safety Authority

C. M. Sullivan

University of Liverpool

S. Szwec

Jyväskylän Yliopisto

H. Tann

Jyväskylän Yliopisto

University of Liverpool

A. Tolosa Delgado

Jyväskylän Yliopisto

E. Uusikyla

Jyväskylän Yliopisto

L. Waring

University of Liverpool

G. L. Zimba

Jyväskylän Yliopisto

Louisiana State University

Physical Review C

24699985 (ISSN) 24699993 (eISSN)

Vol. 113 4 044317

Ämneskategorier (SSIF 2025)

Subatomär fysik

DOI

10.1103/5rxb-bscn

Mer information

Senast uppdaterat

2026-06-25