Erich Vogt

Discovery of the elements with atomic numbers greater than or equal to 113 (IUPAC Technical Report)

The IUPAC/IUPAP Joint Working Party (JWP) on the priority of claims to the discovery of new elements 113–116 and 118 has reviewed the relevant literature pertaining to several claims. In accordance with the criteria for the discovery of elements previously established by the 1992 IUPAC/IUPAP Transfermium Working Group (TWG), and reinforced in subsequent IUPAC/IUPAP JWP discussions, it was determined that the Dubna-Livermore collaborations share in the fulfillment of those criteria both for elements Z = 114 and 116. A synopsis of experiments and related efforts is presented.

On the Claims for Discovery of Elements 110, 111, 112, 114, 116, and 118 (IUPAC Technical Report)

The IUPAC/IUPAP Joint Working Party on the priority of claims to the discovery of new elements has reviewed the relevant literature pertaining to several claims. In accordance with the criteria for the discovery of elements, previously established by the 1992 IUPAC/IUPAP Transfermium Working Group, and reinforced by the 1999 IUPAC/IUPAP Joint Working Party, it was determined that the claim by the Hofmann et al. research collaboration for the discovery of element 111 at Gesellschaft für Schwerionenforschung (GSI) has fulfilled those criteria. For elements 112, 114, and 116, the collaborations of Hofmann et al. and of Oganessian et al. produced high-quality data with plausible interpretations. However, confirmation by further results is needed to assign priority of discovery for these elements. The working party was not persuaded that other collaborations have satisfied the discovery criteria.

Discovery of the element with atomic number 112 (IUPAC Technical Report)

The IUPAC/IUPAP Joint Working Party (JWP) on the priority of claims to the discovery of new elements has reviewed the relevant literature pertaining to several claims. In accordance with the criteria for the discovery of elements previously established by the 1992 IUPAC/IUPAP Transfermium Working Group (TWG), and reiterated by the 1999 and 2003 IUPAC/IUPAP JWPs, it was determined that the 1996 and 2002 claims by the Hofmann et al. research collaborations for the discovery of the element with atomic number 112 at Gesellschaft für Schwerionenforschung (GSI) share in the fulfillment of those criteria. A synopsis of Z = 112 experiments and related efforts is presented. A subsequent report will address identification of higher-Z elements including those of odd atomic number.

On the discovery of the elements 110-112 (IUPAC Technical Report)

The IUPAC/IUPAP joint working party on the priority of claims to the discovery of elements 110, 111, and 112 has reviewed the relevant literature pertaining to the several claims. In accordance with the criteria for the discovery of elements, previously established by the 1992 IUPAC/IUPAP Transfermium Working Group, it was determined that the claim by the Hofmann et al. research collaboration for the discovery of element 110 at GSI has fulfilled those criteria. For elements 111 and 112, the collaboration of Hofmann et al. produced high-quality data with plausible interpretations, but confirmation by further results is needed to assign priority of discovery for these elements. The working party was not convinced that claims of other collaborations have satisfied the discovery criteria.

Improving R - matrix estimates of astrophysical S - factors

Abstract We consider processes, such as the critically important α capture by 12 C, which involve many nuclear resonance levels and reaction channels and also large energy extrapolations to obtain S - factors . The R - matrix is commonly used to analyze the data and make the extrapolations. We liberate the analysis from significant unreliability by showing that, contrary to general belief, the R - matrix has unique matching radii determined by the physics of the nuclear mean-field. The mean-field also reduces the S - factors slightly.

TRIUMF KAON plans

KAON is at the funding brink. This is primarily a funding status report indicating why we now believe that a decision by the government of Canada to proceed with the construction of KAON is imminent. The experimental program is briefly reviewed. KAON remains the central instrument for the future of our field. KAON will be completed six years after construction approval.

TRIUMF kaon factory

The proposed TRIUMF II synchrotron kaon factory is part of a worldwide response to the current interest in quarks, leptons, their interactions, and the degree in which these interactions are responsible for nuclear phenomena. A description of the TRIUMF kaon factory is presented. (AIP)

The KAON facility — its physics and its status

Abstract The Canadian KAON project is now very close to a positive funding decision. It covers a wide range of science including the antiproton physics which is the focus of this conference. At KAON a system of accelerators will provide a 30 GeV, 100 μA primary proton beam. This very intense primary beam then produces secondary beams of kaons, antiprotons, other hadrons, neutrinos etc. in quantities never available before. These are new tools which, for particle physics will confront the questions raised by the standard model of quarks leptons and unified forces. For strong interaction physics KAON will play a leading role in hadron spectroscopy and in the behaviour of atomic nuclei at medium energy. the system of accelerator rings on which KAON is based is briefly described. The science of KAON is outlined. In its funding KAON now has construction commitments for about two-thirds of the required

The birth of triumf-kaon

708M (Cdn, 1989) from the governments of Canada and British Columbia. Before construction can begin these two governments must have appropriate commitments for the remaining one third from KAONs international partners. At the time of this conference those pledges are actively being sought. When successful, the six-year KAON construction can begin. For antiproton physics KAON will provide intense high quality beams above the 2 GeV limit of LEAR. If and when SuperLEAR is built KAON would still provide complementary antiproton facilities.

The Next Generation of Accelerators and Their Challenge for Instrumentation

Abstract With the announcement by the Government of Canada on September 19, 1991 that it was planning to contribute one third of the funds for KAON construction, Canada made the big leap required for the construction of the KAON project. The funding status of KAON will be briefly described. Also, recent developments toward experimental facilities and initial programs are discussed, as well as the technical readiness of the project for construction. The schedule for KAON construction calls for a six year construction period now expected to be at sometime in 1992.