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Emergent collectivity in nuclei and enhanced proton-neutron interactions

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons30363

Cakirli,  Burcu R.
Department of Physics, University of Istanbul;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30312

Blaum,  Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Zitation

Bonatsos, D., Karampagia, S., Cakirli, B. R., Casten, R., Blaum, K., & Susam, L. A. (2013). Emergent collectivity in nuclei and enhanced proton-neutron interactions. Physical Review C, 88(5): 054309. doi:10.1103/PhysRevC.88.054309.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0014-A618-3
Zusammenfassung
Enhanced proton-neutron interactions occur in heavy nuclei along a trajectory of approximately equal numbers of valence protons and neutrons. This is also closely aligned with the trajectory of the saturation of quadrupole deformation. The origin of these enhanced p-n interactions is discussed in terms of spatial overlaps of proton and neutron wave functions that are orbit-dependent. It is suggested for the first time that nuclear collectivity is driven by synchronized filling of protons and neutrons with orbitals having parallel spins, identical orbital and total angular momenta projections, belonging to adjacent major shells and differing by one quantum of excitation along the z axis. These results may lead to a new approach to symmetry-based theoretical calculations for heavy nuclei.