@Article{Valiente-Dobon_etal2021,
author="Valiente-Dobon, J. J. et al
and Gadea, A.
and Algora, A.",
title="Manifestation of the Berry phase in the atomic nucleus Pb-213",
journal="Physics Letters B",
year="2021",
publisher="Elsevier",
volume="816",
pages="136183--5pp",
abstract="The neutron-rich Pb-213 isotope was produced in the fragmentation of a primary 1 GeV A U-238 beam, separated in FRS in mass and atomic number, and then implanted for isomer decay gamma-ray spectroscopy with the RISING setup at GSI. A newly observed isomer and its measured decay properties indicate that states in Pb-213 are characterized by the seniority quantum number that counts the nucleons not in pairs coupled to angular momentum J = 0. The conservation of seniority is a consequence of a geometric phase associated with particle-hole conjugation, which becomes observable in semi-magic nuclei where nucleons half-fill the valence shell. The gamma-ray spectroscopic observables in Pb-213 are thus found to be driven by two mechanisms, particle-hole conjugation and seniority conservation, which are intertwined through a Berry phase.",
optnote="WOS:000647421500054",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4820), last updated on Wed, 26 May 2021 16:01:25 +0000",
issn="0370-2693",
doi="10.1016/j.physletb.2021.136183",
opturl="https://arxiv.org/abs/2010.14859",
opturl="https://doi.org/10.1016/j.physletb.2021.136183",
language="English"
}