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Claes Fahlander

Professor emeritus

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Congruence of decay chains of elements 113, 115, and 117

Author

  • Ulrika Forsberg
  • Claes Fahlander
  • Dirk Rudolph

Editor

  • Dirk Rudolph

Summary, in English

Superheavy element research relies heavily on the detection of correlated decay chains. When several chains have been detected, it is natural to ask whether they form one congruent set, or whether they should be further divided into subsets. To statistically assess the congruence between the chains in a data set, we developed a procedure to calculate a Figure-of-Merit for low-number statistics. In this work, the method is applied to the world data set of odd-Z superheavy nuclei with Z ≥ 113. Some of the postulated sets of chains are found to be congruent, while others are not. The findings are of relevance for the IUPAC and IUPAP approvals of the new elements Z = 113, 115, and 117.

Department/s

  • Nuclear physics

Publishing year

2016-12-01

Language

English

Publication/Series

Nobel Symposium NS 160 – Chemistry and Physics of Heavy and Superheavy Elements : EPJ Web of Conferences

Volume

131

Document type

Conference paper

Publisher

EDP Sciences

Topic

  • Subatomic Physics

Keywords

  • superheavy elements
  • decay chain correlations

Conference name

Nobel Symposium NS160

Conference date

2016-05-29 - 2016-06-03

Conference place

Bäckaskog Castle, Kristianstad, Sweden

Status

Published

Project

  • Characterization of New Superheavy Elements

ISBN/ISSN/Other

  • ISBN: 978-2-7598-9011-8