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HK: Fachverband Physik der Hadronen und Kerne

HK 29: Kernphysik / Spektroskopie

HK 29.8: Talk

Tuesday, March 11, 2008, 13:00–13:15, 2G

Evolution of the 2⁺ mixed symmetry state in the stable isotopic Xe chain — •Laurent Coquard¹, Tan Ahn^1,2, Georgi Rainovski³, Norbert Pietralla¹, Thomas Möller¹, Oliver Möller¹, Jörg Leske¹, Wolfram Rother⁴, and Linus Bettermann⁴ — ¹Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt, Germany — ²Department of Physics and Astronomy, SUNY at Stony Brook, Stony Brook, New York 11794-3800, USA — ³Faculty of Physics, St. Kliment Ohridski University of Sofia, 1164 Sofia, Bulgaria — ⁴Institut für Kernphysik, Universität zu Köln, 50937 Cologne, Germany

The Xenon isotopic chain ^{124,126,128,130,132}Xe has been studied via the Coulomb excitation in inverse kinematics on thin carbon targets @ 85 % of the respective Coulomb barriers. As in [1], the aim of this experiment was the search for mixed symmetry states in a transitional region from spherical to weakly deformed γ-soft nuclei. Mixed symmetry states have been identified by their strong B(M1) transition strength deduced from the γ-ray yields observed with Gammasphere. Experimental results for the Xenon isotopes ^{124,128,130,132}Xe will be here presented and discussed.
[1] G. Rainovsky et al, Phys. Rev. Lett. 96, 122501 (2006).