Proton decay of the highly deformed nucleus Tb

P.J. Woods, P. Munro, D. Seweryniak, C.N. Davids, T. Davinson, A. Heinz, H. Mahmud, F. Sarazin, J. Shergur, W.B. Walters, A. Woehr

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The proton decay of the highly deformed nucleus Tb has been observed following bombardment of a Mo target with a 310 MeV beam of Cr ions. This is the first instance of a proton-decaying isotope being produced via the 1p6n fusion-evaporation channel. Evaporation residues were separated in-flight using the Argonne fragment mass analyzer and implanted into a new design double-sided silicon strip detector. Tb decays by the emission of a proton with energy E =1179(7) keV [Q = 1188(7) keV] and half-life t =0.94 transition is assigned to a highly deformed (β ∼0.3) J =7/2 configuration by comparing the proton decay rate with calculations for deformed nuclei.
Original languageEnglish
JournalPhysical Review C
Issue number5
Publication statusPublished - 1 May 2004


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