Fine Structure of the Giant M1 Resonance in 90Zr
Fine Structure of the Giant M1 Resonance in 90Zr
Rusev, G.; Tsoneva, N.; Dönau, F.; Frauendorf, S.; Schwengner, R.; Tonchev, A. P.; Adekola, A. S.; Hammond, S. L.; Kelley, J. H.; Kwan, E.; Lenske, H.; Tornow, W.; Wagner, A.
The M1 excitations in the nuclide 90Zr have been studied in a photon-scattering experiment with monoenergetic and linearly polarized beams from 7 to 11 MeV. More than 40 Ji^pi = 1+ states have been identified from observed ground-state transitions, revealing the fine structure of the giant M1 resonance with a centroid energy of 9 MeV and a sum strength of 4.17(56) mu_N^2 . The result for the total M1 strength and its fragmentation are discussed in the framework of the three-phonon quasiparticle-phonon model.
Keywords: Nuclear structure; magnetic dipole strength; giant resonance; photon scattering; monoenergetic polarized gamma rays; shell model; quasiparticle-phonon model
Involved research facilities
- Radiation Source ELBE DOI: 10.17815/jlsrf-2-58
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- DOI: 10.17815/jlsrf-2-58 is cited by this (Id 18195) publication
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Physical Review Letters 110(2013), 022503-1-022503-5
DOI: 10.1103/PhysRevLett.110.022503
Cited 43 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-18195
