Phys.Rev. C 100, 034315 (2019)

Y.Xiao, S.Go, R.Grzywacz, R.Orlandi, A.N.Andreyev, M.Asai, M.A.Bentley, G.de Angelis, C.J.Gross, P.Hausladen, K.Hirose, S.Hofmann, H.Ikezoe, D.G.Jenkins, B.Kindler, R.Leguillon, B.Lommel, H.Makii, C.Mazzocchi, K.Nishio, P.Parkhurst, S.V.Paulauskas, C.M.Petrache, K.P.Rykaczewski, T.K.Sato, J.Smallcombe, A.Toyoshima, K.Tsukada, K.Vaigneur, R.Wadsworth

Search for α decay of ¹⁰⁴Te with a novel recoil-decay scintillation detector

RADIOACTIVITY ^108,109Xe, ^104,105Te(α)[from ⁵⁴Fe(⁵⁸Ni, X), E=250 MeV from the tandem accelerator of the Japan Atomic Energy Agency (JAEA), followed by separation of evaporation residues using Recoil Mass Separator (RMS)]; measured Eα, Iα, αα-correlations using an inorganic scintillator YAP:Ce for implanted nuclei, and a multiwire proportional chamber (MWPC) for α particles; deduced αα-correlations for the ¹⁰⁹Xe to ¹⁰⁵Te to ¹⁰¹Sn α-decay chain, and no conclusive trace observed for the ¹⁰⁸Xe to ¹⁰⁴Te to ¹⁰⁰Sn α-decay chain, half-life of ¹⁰⁸Xe decay, upper limit of 4 ns for the half-life of ¹⁰⁴Te; estimated cross section for the production of ¹⁰⁸Xe, an order of magnitude lower than the expectation based on earlier cross section measurements and the HIVAP fusion-evaporation code. ¹⁰⁹I(p), ^108,109Te(α); measured proton and α spectra, half-life of ¹⁰⁹I decay. Comparison with data for ¹⁰⁸Xe to ¹⁰⁴Te to ¹⁰⁰Sn α-decay chain reported by 2018Au04.

doi: 10.1103/PhysRevC.100.034315