Editing Hassium (section)

=== Arbitration ===

In 1985, the [[International Union of Pure and Applied Chemistry]] (IUPAC) and the [[International Union of Pure and Applied Physics]] (IUPAP) formed the Transfermium Working Group (TWG) to assess [[discovery of the chemical elements|discoveries]] and establish final names for elements with atomic numbers greater than 100. The party held meetings with delegates from the three competing institutes; in 1990, they established criteria for recognition of an element and in 1991, they finished the work of assessing discoveries and disbanded. These results were published in 1993.{{sfn|Barber et al.|1993|p=1757}}

According to the report, the 1984 works from JINR and GSI simultaneously and independently established synthesis of element{{spaces}}108. Of the two 1984 works, the one from GSI was said to be sufficient as a discovery on its own. The JINR work, which preceded the GSI one, "very probably" displayed synthesis of element{{spaces}}108. However, that was determined in retrospect given the work from Darmstadt; the JINR work focused on chemically identifying remote granddaughters of element{{spaces}}108 isotopes (which could not exclude the possibility that these daughter isotopes had other progenitors), while the GSI work clearly identified the decay path of those element{{spaces}}108 isotopes. The report concluded that the major credit should be awarded to GSI.{{sfn|Barber et al.|1993|p=1791}} In written responses to this ruling, both JINR and GSI agreed with its conclusions. In the same response, GSI confirmed that they and JINR were able to resolve all conflicts between them.<ref name="1993 responses">{{cite web |url=https://www.gsi.de/en/work/research/nustarenna/nustarenna_divisions/she_physik/research/super_heavy_elements/element_107_109.htm |title=GSI - Element 107-109 |website=GSI Helmholtz Centre for Heavy Ion Research |access-date=29 September 2019 |date=2012 |archive-date=29 September 2019 |archive-url=https://web.archive.org/web/20190929155340/https://www.gsi.de/en/work/research/nustarenna/nustarenna_divisions/she_physik/research/super_heavy_elements/element_107_109.htm |url-status=dead }}</ref>