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.
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Leoni, S., Bracco, A., Colò, G. et al. Particle-phonon coupling: Understanding the variety of excitations in the low-lying spectra of odd nuclei. Eur. Phys. J. A 55, 247 (2019). https://doi.org/10.1140/epja/i2019-12925-9
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DOI: https://doi.org/10.1140/epja/i2019-12925-9