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Münster 2017 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 32: Structure and Dynamics of Nuclei V

HK 32.7: Talk

Wednesday, March 29, 2017, 18:30–18:45, F 33

Possible hexadecapole states in 96Ru and 128Te studied with the sdg-IBM-2 — •Oriana Diessel, Mark Spieker, and Andreas Zilges — Institute for Nuclear Physics, University of Cologne

Quadrupole excitations of fully-symmetric and mixed-symmetric nature are well established in atomic nuclei [1]. Octupole excitations of both types have also been discussed [2]. Recently, first candidates for mixed-symmetry hexadecapole states have been proposed based on a comparison of experimental data and sdg-IBM-2 calculations [3, 4].

In this contribution, the sdg-IBM-2 calculations for 96Ru and 128Te will be presented and compared to experimental data. Special emphasis will be put on possible hexadecapole-type excitations of both fully-symmetric and mixed-symmetric nature. To further test the hexadecapole phonon as a building block of nuclear structure, possible multiphonon couplings in 128Te will be discussed as well.

Supported by the DFG (ZI 510/7-1).

[1] N. Pietralla et al., Phys. Rev. C 61 (2000) 021301 [2] M. Scheck et al., PRC 81 (2010) 064305 [3] R.J. Casperson et al., Physics Letters B 721 (2013) 51 [4] A. Hennig et al., Phys. Rev. C 90 (2014) 051302

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