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Dresden 2000 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 16: Postersitzung / Kernphysik

HK 16.7: Poster

Donnerstag, 23. März 2000, 10:15–12:45, B 69

High Spin Structure of 70Se* — •G. Rainovski1,2, H. Schnare1, R. Schwengner1, C. Borcan1, L. Käubler1, F. Dönau1, V.I. Dimitrov2, J. Eberth3, T. Steinhardt3, O. Thelen3, M. Hausmann4, A. Müller4, A. Jungclaus4, K.P. Lieb5, D. Jenkins5, R. Wadsworth5, A. Wilson5, G. deAngelis6, A. Gadea6, D.R. Napoli6, and A. Algora61Inst. f. Kern- und Hadronenphysik, FZ Rossendorf, 01314 Dresden — 2University of Sofia, 1164 Sofia, Bulgaria — 3Inst. f. Kernphysik, Uni zu Köln, 50937 Köln — 4II. Physikalisches Institut, Uni Göttingen, 37073 Göttingen — 5University of York, Y01 5DD York, United Kingdom — 6INFN, I-35020 Legnaro, Italy

The nucleus 70Se has been studied using the 40Ca(40Ca,2α2p) reaction at the beam energy of 185 MeV. γ rays were measured using the EUROBALL III array. In order to detect emitted charged particles the ISIS Si-ball was used. The beam was provided by the XTU tandem accelerator at the Laboratori Nazionali di Legnaro. γ-γ-γ and γ-γ-charged-particle coincidences were used to identify γ transitions in 70Se which is produced in one of the weakest channels. All previously known levels in 70Se were confirmed. In addition four new rotational bands were observed. These bands are interpreted in terms of cranked Strutinsky calculations with Woods-Saxon average potential.
* Supported by the DAAD, contract A/99/08058 and by the BMBF, contract 06DR827.

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