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Testing ab initio nuclear structure in neutron-rich nuclei: Lifetime measurements of second 2<sup>+</sup> state in <sup>16</sup>C and <sup>20</sup>O

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cris.lastimport.scopus2024-02-12T19:29:01Z
dc.abstract.enTo test the predictive power of ab initio nuclear structure theory, the lifetime of the second 2<sup>+</sup> state in neutron-rich <sup>20</sup>O, τ(2<sub>2</sub><sup>+</sup>)=150<sup>+80</sup><sub>-30</sub>fs, and an estimate for the lifetime of the second 2<sup>+</sup> state in <sup>16</sup>C have been obtained for the first time. The results were achieved via a novel Monte Carlo technique that allowed us to measure nuclear state lifetimes in the tens-to-hundreds of femtoseconds range by analyzing the Doppler-shifted γ-transition line shapes of products of low-energy transfer and deep-inelastic processes in the reaction <sup>18</sup>O(7.0MeV/u)+ <sup>181</sup>Ta. The requested sensitivity could only be reached owing to the excellent performances of the Advanced γ-Tracking Array AGATA, coupled to the PARIS scintillator array and to the VAMOS++ magnetic spectrometer. The experimental lifetimes agree with predictions of ab initio calculations using two- and three-nucleon interactions, obtained with the valence-space in-medium similarity renormalization group for <sup>20</sup>O and with the no-core shell model for <sup>16</sup>C. The present measurement shows the power of electromagnetic observables, determined with high-precision γ spectroscopy, to assess the quality of first-principles nuclear structure calculations, complementing common benchmarks based on nuclear energies. The proposed experimental approach will be essential for short lifetime measurements in unexplored regions of the nuclear chart, including r-process nuclei, when intense beams, produced by Isotope Separation On-Line (ISOL) techniques, become available.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorKicińska-Habior, Marta
dc.contributor.authorNapiorkowski, Paweł
dc.contributor.authorMaj, A.
dc.contributor.authorLeoni, S.
dc.contributor.authorCrespi, F. C. L.
dc.contributor.authorZiliani, S.
dc.contributor.authorCiemała, M.
dc.contributor.authorMillion, B.
dc.contributor.authorMatejska-Minda, M.
dc.contributor.authorBracco, A.
dc.contributor.authorBenzoni, G.
dc.contributor.authorBednarczyk, P.
dc.contributor.authorMichelagnoli, C.
dc.contributor.authorMazurek, K.
dc.contributor.authorMatea, I.
dc.contributor.authorLi, H.
dc.contributor.authorLewitowicz, M.
dc.contributor.authorLenzi, S. M.
dc.contributor.authorLemasson, A.
dc.contributor.authorFransen, C.
dc.contributor.authorFrance, G. de
dc.contributor.authorErturk, S.
dc.contributor.authorDorvaux, O.
dc.contributor.authorCoelli, S.
dc.contributor.authorClément, E.
dc.contributor.authorCieplicka-Oryńczak, N.
dc.contributor.authorPodolyak, Zs.
dc.contributor.authorCamera, F.
dc.contributor.authorBarrientos, D.
dc.contributor.authorPerez-Vidal, R. M.
dc.contributor.authorRecchia, F.
dc.contributor.authorRejmund, M.
dc.contributor.authorPullia, A.
dc.contributor.authorPalit, R.
dc.contributor.authorSaillant, F.
dc.contributor.authorNapoli, D. R.
dc.contributor.authorReiter, P.
dc.contributor.authorSanchis, E.
dc.contributor.authorNanal, V.
dc.contributor.authorSalsac, M. D.
dc.contributor.authorGrębosz, J.
dc.contributor.authorMüller-Gatermann, C.
dc.contributor.authorTheisen, Ch.
dc.contributor.authorGoldkuhle, A.
dc.contributor.authorStezowski, O.
dc.contributor.authorSchmitt, Ch.
dc.contributor.authorAtaç, A.
dc.contributor.authorLabiche, M.
dc.contributor.authorZielińska, M.
dc.contributor.authorKorten, W.
dc.contributor.authorZieblinski, M.
dc.contributor.authorMenegazzo, R.
dc.contributor.authorWieland, O.
dc.contributor.authorLefevre, A.
dc.contributor.authorWasilewska, B.
dc.contributor.authorNyberg, J.
dc.contributor.authorVardaci, E.
dc.contributor.authorMengoni, D.
dc.contributor.authorStefan, I.
dc.contributor.authorStanoiu, M.
dc.contributor.authorCullen, D. M.
dc.contributor.authorCollado, J.
dc.contributor.authorCharles, L.
dc.contributor.authorCederwall, B.
dc.contributor.authorBoston, A. J.
dc.contributor.authorBirkenbach, B.
dc.contributor.authorBraunroth, T.
dc.contributor.authorDomingo-Pardo, C.
dc.contributor.authorBeckers, M.
dc.contributor.authorDésesquelles, P.
dc.contributor.authorBast, M.
dc.contributor.authorBrambilla, S.
dc.contributor.authorBottoni, S.
dc.contributor.authorBoiano, C.
dc.contributor.authorValiente-Dobón, J. J.
dc.contributor.authorJungclaus, A.
dc.contributor.authorMenéndez, J.
dc.contributor.authorJudson, D. S.
dc.contributor.authorHolt, J. D.
dc.contributor.authorHess, H.
dc.contributor.authorSimonis, J.
dc.contributor.authorHarkness-Brennan, L. J.
dc.contributor.authorSchwenk, A.
dc.contributor.authorGoupil, J.
dc.contributor.authorGonzález, V.
dc.contributor.authorEberth, J.
dc.contributor.authorDudouet, J.
dc.contributor.authorKim, Y.
dc.contributor.authorKarpov, A.
dc.contributor.authorJacquot, B.
dc.contributor.authorIskra, Ł. W.
dc.contributor.authorHarakeh, M. N.
dc.contributor.authorFornal, Bogdan
dc.contributor.authorKmiecik, Maria
dc.date.accessioned2024-01-26T09:43:55Z
dc.date.available2024-01-26T09:43:55Z
dc.date.copyright2020-02-27
dc.date.issued2020
dc.description.accesstimeAT_PUBLICATION
dc.description.financePublikacja bezkosztowa
dc.description.number2
dc.description.versionFINAL_PUBLISHED
dc.description.volume101
dc.identifier.doi10.1103/PHYSREVC.101.021303
dc.identifier.issn2469-9985
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/121733
dc.identifier.weblinkhttps://journals.aps.org/prc/pdf/10.1103/PhysRevC.101.021303
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofPhysical Review C
dc.relation.pages021303
dc.rightsCC-BY
dc.sciencecloudnosend
dc.subject.enSHELL-MODEL
dc.subject.enCOLLECTIVITY
dc.subject.enPERFORMANCE
dc.subject.enFORCES
dc.titleTesting ab initio nuclear structure in neutron-rich nuclei: Lifetime measurements of second 2<sup>+</sup> state in <sup>16</sup>C and <sup>20</sup>O
dc.typeJournalArticle
dspace.entity.typePublication