The New $^{249}$No Isotope

The New $^{249}$No Isotope

In the reaction of complete fusion of $^{48}$Ca-ions with a $^{204}$Pb target, a new α line, related to the decay of a new, previously unknown isotope ($^{249}$No), has been detected in an experiment carried out at the SHELS separator. The α decay energy (E$_{α}$ = 9129 keV) and the half-life (T$_{1...

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Veröffentlicht in:Physics of particles and nuclei letters 2021-07, Vol.18 (4), p.445-448
Hauptverfasser: Svirikhin, A.I., Yeremin, A.V., Zamyatin, N.I., Izosimov, I.N., Isaev, A.V., Kuznetsova, A.A., Malyshev, O.N., Mukhin, R.S., Popeko, A.G., Popov, Y.A., Sokol, E.A., Sailaubekov, B., Tezekbayeva, M.S., Chelnokov, M.L., Chepigin, V.I., Andel, B., Antalic, S., Bronis, A., Mosat, P., Gall, B., Dorvaux, O., Lopez-Martens, A., Hauschild, K.
Format: Artikel
Sprache:eng
Schlagworte:
Nuclear Theory
Physics
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Zusammenfassung:In the reaction of complete fusion of $^{48}$Ca-ions with a $^{204}$Pb target, a new α line, related to the decay of a new, previously unknown isotope ($^{249}$No), has been detected in an experiment carried out at the SHELS separator. The α decay energy (E$_{α}$ = 9129 keV) and the half-life (T$_{1/2}$ = 38.1 ± 2.5 ms) are measured using the GABRIELA detector array. The SF branching ratio was estimated (b$_{SF}$ ≤ 0.2%).
ISSN:1547-4771
1531-8567
DOI:10.1134/S1547477121040154