In-beam study of 109Sn

L. Käubler, H. Prade, J. Reif, R. Schwengner, G. Winter, H. Grawe, J. Heese, H. Kluge, K.-H. Maier, R. Schubart, K.-M. Spohr

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2 Citations (Scopus)


In-beam spectroscopic investigations of 109Sn have been performed using the reactions 55Mn(58Ni, 3pn) and 106Cd(α, n) with E58Ni = 240 MeV and Eα = 23 MeV, respectively. An extended level scheme of 109Sn is presented showing high-spin states up to Ex ≈ 8 MeV with Jπ = (41/2+). The problem of the 109Sn ground state has been solved identifying a 12.8 keV transition deexciting the 7/2+ state to the 5/2+ g.s. A half-life of T½ = 7(1) ns has been measured for the 17/2+ state at Ex = 2114 keV. The experimental data are compared with the predictions of shell-model calculations.
Original languageEnglish
Pages (from-to)266-269
Number of pages4
JournalPhysica Scripta
Publication statusPublished - 1995
Externally publishedYes


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