2018 Impact factor 2.481
Hadrons and Nuclei

Eur. Phys. J. A 9, 307-308

Short note

Identification of the 13/2+ isomer in \ensuremath{\mathsf{^{199}At}}

M. Lach1 - P. Bednarczyk1 - P.T. Greenlees2 - K. Helariutta2 - P. Jones2 - R. Julin2 - S. Juutinen2 - H. Kankaanpää2 - H. Kettunen2 - P. Kuusiniemi2 - M. Leino2 - W. Meczynski1 - M. Muikku2 - P. Nieminen2 - P. Rahkila2 - J. Styczen1 - J. Uusitalo2

1 The Niewodniczanski Institute of Nuclear Physics, Kraków, Poland
2 Department of Physics, University of Jyväskylä, Jyväskylä, Finland

Received: 19 September 2000 / Revised version: 19 October 2000
Communicated by J Äystö

Abstract
The 13/2+ isomeric state in the \ensuremath{\mathsf{^{199}At}} nucleus has been identified at an excitation energy of 573 keV and its half-life measured to be 580(130) ns using the recoil-decay tagging technique.

PACS
21.10.Tg Lifetimes - 23.20.Lv Gamma transitions and level energies - 27.80.+w $190\leq A\leq 219$


Copyright Società Italiana di Fisica, Springer-Verlag 2000