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Article
Title	Level structure of odd-odd $^{134}$Sb populated in the $\beta\!^{-}$-decays of $^{134, 135}$Sn
Author(s)	Shergur, J (Univ. of Maryland, USA and Argonne National Laboratory, Illinois, USA) ; Wöhr, A (Univ. of Maryland, USA andUniv. of Notre Dame, Illinois , USA) ; Walters, W B (Univ. of Maryland, USA) ; Kratz, K L (Univ. Mainz, Germany) ; Arndt, A (Univ. Mainz, Germany) ; Brown, B A (Michigan State Univ,. USA) ; Cederkäll, J (CERN) ; Dillmann, I (Univ. Mainz, Germany) ; Fraile-Prieto, L M (CERN ; Universidad Complutense, Madrid) ; Hoff, P (Univ. of Oslo, Norway) ; Joinet, A (CERN) ; Köster, U (CERN) ; Pfeiffer, B (Univ. Mainz, Germany)
Publication	2005
In:	Phys. Rev. C 71 (2005) 64321-64330
DOI	10.1103/PhysRevC.71.064321
Subject category	Nuclear Physics - Experiment
Accelerator/Facility, Experiment	CERN ISOLDE ; IS378
Abstract	The level structure of odd-odd $^{134}$Sb has been studied at CERN/ISOLDE following the $\beta\!^{-}$-decay of $^{134}$Sn and the $\beta$-delayed neutron decay of $^{135}$Sn. Elemental and isobaric separation were accomplished by use of a resonance ionization laser ion source and an on-line mass separator, respectively. Both $\gamma$-ray singles and $\gamma\gamma$-coincidence data were taken as a function of time. New levels at 279, 441, 555, 617, and 1385 keV have been identified and given proposed spin and parity assignments of 7$^{−}$, 5$^{−}$, 6$^{−}$, 4$^{−}$, and 5$^{−}$, respectively, following $\beta$-delayed neutron decay of 7/2$^{−}$ $^{135}$Sn. New 1$^{−}$ levels have been identified at 1900, 2170, and 2430 keV following the $\beta\!^{-}$-decay of 0$\!^{+}$ $^{134}\!$Sn. The resulting level structures are compared to shell-model calculations using the CD Bonn interaction and scaled and unscaled Kuo-Herling interactions developed for the $^{208}$Pb region. Remarkably enough, the unscaled Kuo-Herling interaction provides the best fit for the levels below 1 MeV.

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