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Manifestation of the Berry phase in the atomic nucleus 213Pb

Valiente-Dobón, J.J. ; Gottardo, A. ; Benzoni, G. ; Gadea, A. ; Lunardi, S. ; Algora, A. ; de Angelis, G. ; Bazzacco, D. ; Benlliure, J. and Boutachkov, P. , et al. (2021) In Physics Letters B 816.
Abstract
The neutron-rich 213Pb isotope was produced in the fragmentation of a primary 1 GeV A 238U beam, separated in FRS in mass and atomic number, and then implanted for isomer decay γ-ray spectroscopy with the RISING setup at GSI. A newly observed isomer and its measured decay properties indicate that states in 213Pb 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 γ-ray spectroscopic observables in 213Pb are... (More)
The neutron-rich 213Pb isotope was produced in the fragmentation of a primary 1 GeV A 238U beam, separated in FRS in mass and atomic number, and then implanted for isomer decay γ-ray spectroscopy with the RISING setup at GSI. A newly observed isomer and its measured decay properties indicate that states in 213Pb 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 γ-ray spectroscopic observables in 213Pb are thus found to be driven by two mechanisms, particle-hole conjugation and seniority conservation, which are intertwined through a Berry phase. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
isomeric decays, relativistic projectile fragmentation, gamma-ray spectroscopy
in
Physics Letters B
volume
816
article number
136183
pages
5 pages
publisher
Elsevier
external identifiers
  • scopus:85101944841
ISSN
0370-2693
DOI
10.1016/j.physletb.2021.136183
project
Nuclear Structure at the Limits: Isotope-selective Spectroscopy
language
English
LU publication?
yes
id
a8f3e3fd-ecf4-4949-90c6-de9beedca8a9
date added to LUP
2021-03-09 19:15:57
date last changed
2021-05-14 04:13:40
@article{a8f3e3fd-ecf4-4949-90c6-de9beedca8a9,
  abstract     = {The neutron-rich <sup>213</sup>Pb isotope was produced in the fragmentation of a primary 1 GeV A <sup>238</sup>U beam, separated in FRS in mass and atomic number, and then implanted for isomer decay <i>γ</i>-ray spectroscopy with the RISING setup at GSI. A newly observed isomer and its measured decay properties indicate that states in <sup>213</sup>Pb are characterized by the seniority quantum number that counts the nucleons not in pairs coupled to angular momentum <i>J</i>=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 <i>γ</i>-ray spectroscopic observables in <sup>213</sup>Pb are thus found to be driven by two mechanisms, particle-hole conjugation and seniority conservation, which are intertwined through a Berry phase.},
  author       = {Valiente-Dobón, J.J. and Gottardo, A. and Benzoni, G. and Gadea, A. and Lunardi, S. and Algora, A. and de Angelis, G. and Bazzacco, D. and Benlliure, J. and Boutachkov, P. and Bracco, A. and Bruce, A.M. and Camera, F. and Casarejos, E. and Cortés, M.L. and Crespi, F. C. L. and Corsi, A. and Domingo-Pardo, C. and Doncel, M. and Engert, T. and Geissel, H. and Gerl, J. and Goasduff, A. and Goel, N. and Górska, M. and Grebosz, J. and Gregor, E. and Habermann, T. and Klupp, S. and Kojouharov, I. and Kurz, N. and Lenzi, S. M. and Leoni, S. and Mandal, S. and Menegazzo, R. and Mengoni, D. and Million, B. and Morales, A. I. and Napoli, D.R. and Naqvi, F. and Nociforo, C. and Pfützner, M. and Pietri, S. and Podolyák, Zs. and Prochazka, A. and Recchia, F. and Regan, P.H. and Rudolph, D. and Sahin, E. and Schaffner, H. and Sharma, A. and Sitar, B. and Siwal, D. and Strmen, P. and Szarka, I. and Ur, C.A. and Walker, P.M. and Weick, H. and Wieland, O. and Wollersheim, H.‐J. and Van Isacker, P.},
  issn         = {0370-2693},
  language     = {eng},
  month        = {02},
  publisher    = {Elsevier},
  series       = {Physics Letters B},
  title        = {Manifestation of the Berry phase in the atomic nucleus <sup>213</sup>Pb},
  url          = {https://lup.lub.lu.se/search/ws/files/95097380/PLB_ValienteDobon_BerryPhase.pdf},
  doi          = {10.1016/j.physletb.2021.136183},
  volume       = {816},
  year         = {2021},
}