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Title: {alpha}-decay spectroscopy of the new isotope {sup 192}At

Abstract

Decay properties of the new neutron-deficient nuclide {sup 192}At have been studied in the complete fusion reaction {sup 144}Sm({sup 51}V,3n){sup 192}At at the velocity filter SHIP. Two isomeric states with half-lives of 88(6) ms and 11.5(6) ms, respectively, and with complex {alpha}-decay schemes were identified in {sup 192}At. The decay pattern of one of the isomers suggests that it is based on the oblate-deformed {pi}2f{sub 7/2}x{nu}1i{sub 13/2} configuration, which confirms the expected onset of deformation in the At isotopes by approaching the neutron midshell at N=104.

Authors:
 [1]; ; ;  [2]; ;  [3];  [4];  [5]; ; ; ; ; ; ;  [3];  [3];  [4]; ; ;  [6] more »;  [3];  [7];  [8] « less
  1. TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada)
  2. Department of Nuclear Physics and Biophysics, Comenius University, Bratislava, SK-84248 (Slovakia)
  3. Gesellschaft fuer Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt (Germany)
  4. (Germany)
  5. IPN Orsay, F-91406 Orsay Cedex (France)
  6. Instituut voor Kern- en Stralingsfysica, University of Leuven, B-3001 Leuven (Belgium)
  7. (Japan)
  8. Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE (United Kingdom) (and others)
Publication Date:
OSTI Identifier:
20771268
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 73; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevC.73.024317; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA DECAY; ALPHA SPECTROSCOPY; ASTATINE ISOTOPES; HALF-LIFE; ISOMERIC NUCLEI; NEUTRON-DEFICIENT ISOTOPES; NEUTRONS; NUCLEAR DEFORMATION; SAMARIUM 144 TARGET; VANADIUM 51 REACTIONS

Citation Formats

Andreyev, A.N., Antalic, S., Streicher, B., Saro, S., Ackermann, D., Muenzenberg, G., Institut fuer Physik, Johannes Gutenberg-University, D-55099 Mainz, Franchoo, S., Hessberger, F.P., Kojouharov, I., Kindler, B., Kuusiniemi, P., Lommel, B., Mann, R., Sulignano, B., Hofmann, S., Physikalisches Institut, J.W. Goethe-Universitaet, D-60054 Frankfurt, Huyse, M., Lesher, S.R., Duppen, P. van, Nishio, K., Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, and Page, R.D.. {alpha}-decay spectroscopy of the new isotope {sup 192}At. United States: N. p., 2006. Web. doi:10.1103/PhysRevC.73.024317.
Andreyev, A.N., Antalic, S., Streicher, B., Saro, S., Ackermann, D., Muenzenberg, G., Institut fuer Physik, Johannes Gutenberg-University, D-55099 Mainz, Franchoo, S., Hessberger, F.P., Kojouharov, I., Kindler, B., Kuusiniemi, P., Lommel, B., Mann, R., Sulignano, B., Hofmann, S., Physikalisches Institut, J.W. Goethe-Universitaet, D-60054 Frankfurt, Huyse, M., Lesher, S.R., Duppen, P. van, Nishio, K., Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, & Page, R.D.. {alpha}-decay spectroscopy of the new isotope {sup 192}At. United States. doi:10.1103/PhysRevC.73.024317.
Andreyev, A.N., Antalic, S., Streicher, B., Saro, S., Ackermann, D., Muenzenberg, G., Institut fuer Physik, Johannes Gutenberg-University, D-55099 Mainz, Franchoo, S., Hessberger, F.P., Kojouharov, I., Kindler, B., Kuusiniemi, P., Lommel, B., Mann, R., Sulignano, B., Hofmann, S., Physikalisches Institut, J.W. Goethe-Universitaet, D-60054 Frankfurt, Huyse, M., Lesher, S.R., Duppen, P. van, Nishio, K., Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, and Page, R.D.. Wed . "{alpha}-decay spectroscopy of the new isotope {sup 192}At". United States. doi:10.1103/PhysRevC.73.024317.
@article{osti_20771268,
title = {{alpha}-decay spectroscopy of the new isotope {sup 192}At},
author = {Andreyev, A.N. and Antalic, S. and Streicher, B. and Saro, S. and Ackermann, D. and Muenzenberg, G. and Institut fuer Physik, Johannes Gutenberg-University, D-55099 Mainz and Franchoo, S. and Hessberger, F.P. and Kojouharov, I. and Kindler, B. and Kuusiniemi, P. and Lommel, B. and Mann, R. and Sulignano, B. and Hofmann, S. and Physikalisches Institut, J.W. Goethe-Universitaet, D-60054 Frankfurt and Huyse, M. and Lesher, S.R. and Duppen, P. van and Nishio, K. and Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 and Page, R.D.},
abstractNote = {Decay properties of the new neutron-deficient nuclide {sup 192}At have been studied in the complete fusion reaction {sup 144}Sm({sup 51}V,3n){sup 192}At at the velocity filter SHIP. Two isomeric states with half-lives of 88(6) ms and 11.5(6) ms, respectively, and with complex {alpha}-decay schemes were identified in {sup 192}At. The decay pattern of one of the isomers suggests that it is based on the oblate-deformed {pi}2f{sub 7/2}x{nu}1i{sub 13/2} configuration, which confirms the expected onset of deformation in the At isotopes by approaching the neutron midshell at N=104.},
doi = {10.1103/PhysRevC.73.024317},
journal = {Physical Review. C, Nuclear Physics},
number = 2,
volume = 73,
place = {United States},
year = {Wed Feb 15 00:00:00 EST 2006},
month = {Wed Feb 15 00:00:00 EST 2006}
}