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

Ulrika Forsberg, Claes Fahlander, Dirk Rudolph

    Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

    Abstract

    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.
    Original languageEnglish
    Title of host publicationNobel Symposium NS 160 – Chemistry and Physics of Heavy and Superheavy Elements
    Subtitle of host publicationEPJ Web of Conferences
    EditorsDirk Rudolph
    PublisherEDP Sciences
    Number of pages7
    Volume131
    ISBN (Electronic)978-2-7598-9011-8
    DOIs
    Publication statusPublished - 2016 Dec 1
    EventNobel Symposium NS160: Chemistry and Physics of Heavy and Superheavy Elements - Bäckaskog Castle, Kristianstad, Sweden
    Duration: 2016 May 292016 Jun 3
    Conference number: 160
    http://www.nuclear.lu.se/ns160/

    Conference

    ConferenceNobel Symposium NS160
    Abbreviated titleNS160
    Country/TerritorySweden
    CityBäckaskog Castle, Kristianstad
    Period2016/05/292016/06/03
    Internet address

    Subject classification (UKÄ)

    • Subatomic Physics

    Free keywords

    • superheavy elements
    • decay chain correlations

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