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Particle-phonon coupling: Understanding the variety of excitations in the low-lying spectra of odd nuclei

  • S. LeoniEmail author
  • A. Bracco
  • G. Colò
  • B. Fornal
Regular Article - Experimental Physics
  • 27 Downloads
Part of the following topical collections:
  1. Giant, Pygmy, Pairing Resonances and Related Topics

Abstract.

The couplings between particles and vibrations in atomic nuclei play a key role in the understanding of various nuclear properties, as it has been highlighted along several decades. In this contribution, after a short survey of the early discoveries of particle-phonon multiplets around the 208Pb region, we review recent experiments and theoretical attempts to understand low-energy spectra of odd-nuclei close to magic and semi-magic cores, where particle-phonon coupling phenomena play a significant role. The focus will be on nuclei around 48Ca , 132Sn , 208Pb and neutron-rich Ni isotopes. Special emphasis will be given to experimental techniques based on high-resolution \( \gamma\)-spectroscopy and to recent theoretical developments aimed at disentangling particle-phonon coupled states and other more hybrid configurations, using the Hybrid Configuration Mixing model that has been recently proposed by the Milano group.

Notes

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Copyright information

© Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Physics, University of MilanoINFN, Sezione di MilanoMilanoItaly
  2. 2.Institute of Nuclear Physics PANKrakowPoland

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