Identification and decay of the 0.48 ms 13/2{sup +} isomer in {sup 181}Hg
Abstract
A new isomer with a half-life of 0.48(2) ms was identified in the nuclide {sup 181}Hg, which was produced in the complete fusion reaction {sup 40}Ca+{sup 144}Sm{yields}{sup 184}Pb* at the velocity filter SHIP (GSI, Darmstadt). The isomeric state was tentatively assigned a spin-parity of 13/2{sup +}. We propose that this isomer de-excites by a yet unobserved low-energy, strongly converted {gamma}-ray transition, followed by a newly identified cascade composed of a 90.3 keV M1 and a 71.4 keV E2 {gamma}-ray transition.
- Authors:
-
- School of Engineering and Science, University of the West of Scotland, Paisley PA1 2BE (United Kingdom)
- Department of Nuclear Physics and Biophysics, Comenius University, Bratislava 84248 (Slovakia)
- GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, D-64291 Darmstadt (Germany)
- Instituut voor Kern-en Stralingsfysica, K. U. Leuven, University of Leuven, B-3001 Leuven (Belgium)
- IPN Orsay, F-91406 Orsay Cedex (France)
- Publication Date:
- OSTI Identifier:
- 21293947
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review. C, Nuclear Physics
- Additional Journal Information:
- Journal Volume: 80; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevC.80.044334; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CALCIUM 40; DECAY; E2-TRANSITIONS; GAMMA RADIATION; HALF-LIFE; HEAVY ION FUSION REACTIONS; ISOMERS; KEV RANGE 10-100; LEAD 184; M1-TRANSITIONS; MERCURY 181; PARITY; SAMARIUM 144; SPIN
Citation Formats
Andreyev, A N, Instituut voor Kern-en Stralingsfysica, K. U. Leuven, University of Leuven, B-3001 Leuven, Antalic, S, Saro, S, Ackermann, D, Comas, V F, Heinz, S, Heredia, J A, Hessberger, F P, Khuyagbaatar, J, Kojouharov, I, Kindler, B, Lommel, B, Mann, R, Cocolios, T E, Elseviers, J, Huyse, M, Duppen, P Van, Venhart, M, Franchoo, S, Hofmann, S, and Physikalisches Institut, J. W. Goethe-Universitaet, D-60054 Frankfurt am Main. Identification and decay of the 0.48 ms 13/2{sup +} isomer in {sup 181}Hg. United States: N. p., 2009.
Web. doi:10.1103/PHYSREVC.80.044334.
Andreyev, A N, Instituut voor Kern-en Stralingsfysica, K. U. Leuven, University of Leuven, B-3001 Leuven, Antalic, S, Saro, S, Ackermann, D, Comas, V F, Heinz, S, Heredia, J A, Hessberger, F P, Khuyagbaatar, J, Kojouharov, I, Kindler, B, Lommel, B, Mann, R, Cocolios, T E, Elseviers, J, Huyse, M, Duppen, P Van, Venhart, M, Franchoo, S, Hofmann, S, & Physikalisches Institut, J. W. Goethe-Universitaet, D-60054 Frankfurt am Main. Identification and decay of the 0.48 ms 13/2{sup +} isomer in {sup 181}Hg. United States. https://doi.org/10.1103/PHYSREVC.80.044334
Andreyev, A N, Instituut voor Kern-en Stralingsfysica, K. U. Leuven, University of Leuven, B-3001 Leuven, Antalic, S, Saro, S, Ackermann, D, Comas, V F, Heinz, S, Heredia, J A, Hessberger, F P, Khuyagbaatar, J, Kojouharov, I, Kindler, B, Lommel, B, Mann, R, Cocolios, T E, Elseviers, J, Huyse, M, Duppen, P Van, Venhart, M, Franchoo, S, Hofmann, S, and Physikalisches Institut, J. W. Goethe-Universitaet, D-60054 Frankfurt am Main. 2009.
"Identification and decay of the 0.48 ms 13/2{sup +} isomer in {sup 181}Hg". United States. https://doi.org/10.1103/PHYSREVC.80.044334.
@article{osti_21293947,
title = {Identification and decay of the 0.48 ms 13/2{sup +} isomer in {sup 181}Hg},
author = {Andreyev, A N and Instituut voor Kern-en Stralingsfysica, K. U. Leuven, University of Leuven, B-3001 Leuven and Antalic, S and Saro, S and Ackermann, D and Comas, V F and Heinz, S and Heredia, J A and Hessberger, F P and Khuyagbaatar, J and Kojouharov, I and Kindler, B and Lommel, B and Mann, R and Cocolios, T E and Elseviers, J and Huyse, M and Duppen, P Van and Venhart, M and Franchoo, S and Hofmann, S and Physikalisches Institut, J. W. Goethe-Universitaet, D-60054 Frankfurt am Main},
abstractNote = {A new isomer with a half-life of 0.48(2) ms was identified in the nuclide {sup 181}Hg, which was produced in the complete fusion reaction {sup 40}Ca+{sup 144}Sm{yields}{sup 184}Pb* at the velocity filter SHIP (GSI, Darmstadt). The isomeric state was tentatively assigned a spin-parity of 13/2{sup +}. We propose that this isomer de-excites by a yet unobserved low-energy, strongly converted {gamma}-ray transition, followed by a newly identified cascade composed of a 90.3 keV M1 and a 71.4 keV E2 {gamma}-ray transition.},
doi = {10.1103/PHYSREVC.80.044334},
url = {https://www.osti.gov/biblio/21293947},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 4,
volume = 80,
place = {United States},
year = {Thu Oct 15 00:00:00 EDT 2009},
month = {Thu Oct 15 00:00:00 EDT 2009}
}
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