Title: Alpha decay of At-194
Authors: Andreev, Andrei ×
Antalic, S
Ackermann, D
Bianco, L
Franchoo, S
Heinz, S
Hessberger, F. P
Hofmann, S
Huyse, Marc
Kojouharov, I
Kindler, B
Lommel, B
Mann, R
Nishio, K
Page, R. D
Ressler, J. J
Sapple, P
Streicher, B
Saro, S
Sulignano, B
Thomson, J
Van Duppen, Piet
Venhart, Martin #
Issue Date: 25-Jun-2009
Publisher: Published for the American Physical Society by the American Institute of Physics
Series Title: Physical Review C, Nuclear Physics vol:79 issue:6 pages:1-12
Article number: 064320
Abstract: Detailed alpha-decay studies of the neutron-deficient isotope At-194 have been performed in the complete fusion reaction Fe-56+Pr-141 -> At-194+3n at the velocity filter SHIP. Two alpha-decaying isomeric states with half-lives of T-1/2(At-194(m1))=310(8) ms and T-1/2(At-194(m2))=253(10) ms were identified in this nucleus. Their complex decays to the states in the daughter nucleus Bi-190 are discussed in the article. We propose that similar to the case of the neighboring At-191,At-192,At-193,At-195 isotopes, the oblate-deformed configurations based on the proton 1/2(+)[440] and/or 7/2(-)[514] Nilsson orbitals become important in At-194. A new isomeric state with the half-life of 175(8) ns was observed in Bi-190.</p>.
ISSN: 2469-9985
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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