{"paper":{"title":"Manifestation of the Berry phase in the atomic nucleus $^{213}$Pb","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"nucl-ex","authors_text":"A. Algora, A. Bracco, A. Corsi, A. Gadea, A. Gottardo, A.I. Morales, A.M. Bruce, A. Prochazka, A. Sharma, B. Million, B. Sitar, C.A. Ur, C. Domingo-Pardo, C. Nociforo, D. Bazzacco, D. Mengoni, D.R. Napoli, D. Rudolph, D. Siwal, E. Casarejos, E. Gregor, E. Sahin, F. Camera, F.C.L. Crespi, F. Naqvi, F. Recchia, G. Benzoni, G. de Angelis, H. Geissel, H-J. Wollersheim, H. Scha_ner, H. Weick, I. Kojouharov, I. Szarka, J. Benlliure, J. Gerl, J. Grebosz, J.J. Valiente-Dob\\'on, M. Doncel, M. G\\'orska, M.L. Cort\\'es, M. Pfutzner, N. Goel, N. Kurz, O. Wieland, P. Boutachkov, P.H. Regan, P.M. Walker, P. Strmen, P. Van Isacker, R. Menegazzo, S. Klupp, S. Leoni, S. Lunardi, S. Mandal, S.M. Lenzi, S. Pietri, T. Engert, T. Habermann, Zs. Podolyak","submitted_at":"2020-10-28T10:11:46Z","abstract_excerpt":"The neutron-rich $^{213}$Pb isotope was produced in the fragmentation of a primary 1 GeV $A$ $^{238}$U 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 $^{213}$Pb 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 the Berry phase associated with particle-hole conjugation, which becomes gauge invariant "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.14859","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2010.14859/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}