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HK: Fachverband Physik der Hadronen und Kerne

HK 31: Struktur und Dynamik von Kernen

HK 31.7: Vortrag

Dienstag, 5. März 2013, 15:45–16:00, HSZ-301

Angular Distributions of Low-Spin States in ²⁴⁰Pu by Means of the ²⁴²Pu(p,t)²⁴⁰Pu Reaction — •Mark Spieker¹, Dorel Bucurescu², Janis Endres¹, Thomas Faestermann³, Ralf Hertenberger⁴, Sorin Pascu¹, Hans-Friedrich Wirth⁴, Nicolae-Victor Zamfir², and Andreas Zilges¹ — ¹Institut für Kernphysik, Universität zu Köln — ²Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, Romania — ³Physik Department, Technische Universität München — ⁴Fakultät für Physik, Ludwig-Maximilians-Universität München

Since recent experimental and theoretical studies revealed the importance of octupole correlations in the actinide region and especially in ²⁴⁰Pu, a ²⁴²Pu(p,t)²⁴⁰Pu experiment has been conducted at the Q3D magnetic spectrograph of the Maier-Leibnitz laboratory in Munich. Excited states in ²⁴⁰Pu were investigated up to an excitation energy of 3 MeV. Angular distributions have been measured at 9 laboratory angles between 5^∘ and 40^∘. The comparison of the experimental angular distributions with DWBA calculations allowed the assignment of several low-spin states. Most of them were seen for the first time. The experimental data, especially the data on the 21 J^π= 0⁺ states, will be presented and discussed in the framework of the spdf-version of the Interacting Boson Model.

Supported by the DFG (ZI-510/4-2). M.S. is member of the Bonn-Cologne Graduate School of Physics and Astronomy.