Decay Q-value of 105Sn and of other nuclei near 100Sn, measured at the GSI on-line mass separator

Discovery ofXe109andTe105: SuperallowedαLiddick1, Grzywacz2, Mazzocchi3 et al. 2006Phys. Rev. Lett.1067600View full textAdd to dashboardCite

“…[22] the half-life of 109 Xe is 13 2 ms. The half-lives of the low and high energy transitions from 109 Xe are The ground state spin and parity of 101 Sn was previously suggested to be 5=2 , arising from the d 5=2 orbital [11]. The observation of only one transition between 105 Te and 101 Sn suggests that the ground state of 105 Te is I 5=2 .…”

“…There are numerous theoretical estimates for the g 7=2 -d 5=2 energy separation which range from ÿ0:05 to 1.9 MeV ( [9,10], and references therein). Experiments performed in this region investigating the low-energy structure of the Sn, Te, and Xe isotopes suggest that the g 7=2 -d 5=2 energy separation is below 0.3 MeV [5][6][7][8][9][11][12][13][14]. Experimental efforts are needed to improve this constraint and ultimately identify the low-energy excited states in 101 Sn.…”

Three decades of research using IGISOL technique at the University of Jyväskylä

“…11). In addition, the value derived from the 100 Mo(n, γ) 101 Mo [44] reaction gives a similar deviation as the AME03 value. This suggests that the AME03 value for 101 Mo should be about 6.6 keV lower in order to agree with the (n, γ) data.…”

“…This selective enhancement of the spectroscopic efficiency allowed spectra to be measured for the neutron-deficient isotopes and isomers, 90,90m,91,91m,92 Nb-spanning the N = 50 neutron shell closure-and the neutron-rich isotopes, 99,101,103 Nb, which cover the N = 60 shape change region. The nuclei undergo a similar transition as in 214 D.H. Forest, B. Cheal yttrium, but the magnitude of the effect is lower and a significant degree of β-softness is observed both before and after the shape change.…”

Progress in ISOL target–ion source systems

“…At GSI-ISOL detailed decay spectroscopy experiments of 101À105 Sn could be performed with the new, pure SnS + beams [44][45][46][47][48][49][50]. At ISOLDE ultrafast timing measurements gave new information on transitions in 134,135 Sb and 136 Te populated by decay of 134-137 SnS + beams [51,52] and precision measurements of atomic masses up to 134 SnS + were performed with ISOLTRAP [53].…”