Direct high-precision mass spectrometry of superheavy elements with SHIPTRAP
| Autor: | O. Kaleja, B. Anđelić, O. Bezrodnova, K. Blaum, M. Block, S. Chenmarev, P. Chhetri, C. Droese, Ch. E. Düllmann, M. Eibach, S. Eliseev, J. Even, P. Filianin, F. Giacoppo, S. Götz, Yu. Gusev, M. J. Gutiérrez, F. P. Heßberger, N. Kalantar-Nayestanaki, J. J. W. van de Laar, M. Laatiaoui, S. Lohse, N. Martynova, E. Minaya Ramirez, A. K. Mistry, T. Murböck, Yu. Novikov, S. Raeder, D. Rodríguez, F. Schneider, L. Schweikhard, P. G. Thirolf, A. Yakushev |
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| Přispěvatelé: | Energy and Sustainability Research Institute Groni, Precision Frontier |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Physical review / C 106(5), 054325 (2022). doi:10.1103/PhysRevC.106.054325 Physical Review C Physical Review C, 106(5):054325. AMER PHYSICAL SOC |
| ISSN: | 2469-9985 |
| DOI: | 10.1103/physrevc.106.054325 |
| Popis: | Direct mass measurements in the region of the heaviest elements were performed with the Penning-trap mass spectrometer SHIPTRAP at GSI Darmstadt. Utilizing the phase-imaging ion-cyclotron-resonance massspectrometry technique, the atomic masses of 251No (Z = 102), 254Lr (Z = 103), and 257Rf (Z = 104) available at rates down to one detected ion per day were determined directly for the first time. The ground-state masses of 254No and 255,256Lr were improved by more than one order of magnitude. Relative statistical uncertainties as low as δm/m ≈ 10−9 were achieved. Mass resolving powers of 11 000 000 allowed resolving long-lived low-lying isomeric states from their respective ground states in 251,254No and 254,255Lr. This provided an unambiguous determination of the binding energies for odd-A and odd-odd nuclides previously determined only indirectly from decay spectroscopy. Federal Ministry of Education & Research (BMBF) 05P15HGFNA 05P19HGFNA 05P21HGFN1 05P15UMFNA 05P21UMFN1 Max Planck Society Foundation CELLEX Netherlands Organization for Scientific Research (NWO) 680-91-103 European Commission under Marie Sklodowska-Curie Action FP7 MSC COFUND scheme European Research Council (ERC) 819957 Ministry of Science and Innovation, Spain (MICINN) Spanish Government FPA2015-67694-P PID2019-104093GB-I00/AEI |
| Databáze: | OpenAIRE |
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