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HK: Fachverband Physik der Hadronen und Kerne

HK 68: Structure and Dynamics of Nuclei XII

HK 68.5: Vortrag

Freitag, 18. März 2016, 15:15–15:30, S1/01 A03

Deformation dependence of low-energy M1 strength in Fe isotopes — •Ronald Schwengner1 and Stefan Frauendorf21Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden — 2University of Notre Dame, Notre Dame, IN 46556, USA

0mm The low-energy enhancement of dipole strength functions observed in various experiments has been described in shell-model calculations as caused by many M1 transitions. The calculations have been done for a few nuclides near shell closures so far [1,2]. We present results of shell-model calculations for a series of Fe isotopes with increasing collectivity. The calculations were performed using the code NuShellX [3] with the ca48mh1 interaction [4]. The change of the M1 strength functions with increasing deformation is discussed.


[1] R. Schwengner, S. Frauendorf and A.C. Larsen, Phys. Rev. Lett. 111, 232504 (2013).

[2] B.A. Brown and A.C. Larsen, Phys. Rev. Lett. 113, 252502 (2014).

[3] B.A. Brown and W.D.M. Rae, Nucl. Data Sheets 120, 115 (2014).

[4] M. Hjorth-Jensen, T.T.S. Kuo and E. Osnes, Phys. Rep. 261, 125 (1995).

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