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Spectroscopy of $^{28}$Na: shell evolution toward the drip line

hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorLEPAILLEUR, A.
dc.contributor.authorWIMMER, K.
hal.structure.identifierInstitut de Physique Nucléaire d'Orsay [IPNO]
dc.contributor.authorMUTSCHLER, A.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorSORLIN, O.
dc.contributor.authorBADER, V.
dc.contributor.authorBANCROFT, C.
dc.contributor.authorBAROFSKY, D.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorBASTIN, B.
dc.contributor.authorBAUGHER, T.
dc.contributor.authorBAZIN, Dominique
dc.contributor.authorBILDSTEIN, V.
dc.contributor.authorBORCEA, C.
dc.contributor.authorBORCEA, R.
dc.contributor.authorBROWN, B.A.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorCACERES, L.
dc.contributor.authorGADE, A.
hal.structure.identifierDAM Île-de-France [DAM/DIF]
dc.contributor.authorGAUDEFROY, L.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGRÉVY, S.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorGRINYER, G.F.
dc.contributor.authorIWASAKI, H.
hal.structure.identifierInstitut de Physique Nucléaire d'Orsay [IPNO]
dc.contributor.authorKHAN, E.
dc.contributor.authorKRÖLL, T.
dc.contributor.authorLANGER, C.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorLEMASSON, A.
dc.contributor.authorLLIDOO, O.
dc.contributor.authorLLOYD, J.
dc.contributor.authorNEGOITA, F.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorDE OLIVEIRA SANTOS, Francois
dc.contributor.authorPERDIKAKIS, G.
dc.contributor.authorRECCHIA, F.
dc.contributor.authorREDPATH, T.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorROGER, T.
dc.contributor.authorROTARU, F.
dc.contributor.authorSAENZ, S.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorSAINT-LAURENT, M.G.
dc.contributor.authorSMALLEY, D.
dc.contributor.authorSOHLER, D.
dc.contributor.authorSTANOIU, M.
dc.contributor.authorSTROBERG, S.R.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorTHOMAS, J.C.
hal.structure.identifierInstitut de Physique Nucléaire d'Orsay [IPNO]
dc.contributor.authorVANDEBROUCK, M.
dc.contributor.authorWEISSHAAR, D.
dc.contributor.authorWESTERBERG, A.
dc.date.created2015
dc.date.issued2015-11
dc.identifier.issn2469-9985
dc.description.abstractEnExcited states in $^{28}$Na have been studied using the $\beta$-decay of implanted $^{28}$Ne ions at GANIL/LISE as well as the in-beam $\gamma$-ray spectroscopy at the NSCL/S800 facility. New states of positive (J$^{\pi}$=3,4$^+$) and negative (J$^{\pi}$=1-5$^-$) parity are proposed. The former arise from the coupling between 0d$_{5/2}$ protons and a 0d$_{3/2}$ neutron, while the latter are due to couplings with 1p$_{3/2}$ or 0f$_{7/2}$ neutrons. While the relative energies between the J$^{\pi}$=1-4$^+$ states are well reproduced with the USDA interaction in the N=17 isotones, a progressive shift in the ground state binding energy (by about 500 keV) is observed between $^{26}$F and $^{30}$Al. This points to a possible change in the proton-neutron 0d$_{5/2}$-0d$_{3/2}$ effective interaction when moving from stability to the drip line. The presence of J$^{\pi}$=1-4$^-$ negative parity states around 1.5 MeV as well as of a candidate for a J$^{\pi}$=5$^-$ state around 2.5 MeV give further support to the collapse of the N=20 gap and to the inversion between the 0f$_{7/2}$ and 1p$_{3/2}$ levels below Z=12. These features are discussed in the framework of Shell Model and EDF calculations, leading to predicted negative parity states in the low energy spectra of the $^{26}$F and $^{25}$O nuclei.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.subject.en23.20.Lv
dc.subject.en21.60.Cs
dc.subject.en27.30.+t
dc.title.enSpectroscopy of $^{28}$Na: shell evolution toward the drip line
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevC.92.054309
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
dc.identifier.arxiv1503.08568
bordeaux.journalPhysical Review C
bordeaux.page054309
bordeaux.volume92
bordeaux.issue5
bordeaux.peerReviewedoui
hal.identifierin2p3-01136493
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-01136493v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20C&rft.date=2015-11&rft.volume=92&rft.issue=5&rft.spage=054309&rft.epage=054309&rft.eissn=2469-9985&rft.issn=2469-9985&rft.au=LEPAILLEUR,%20A.&WIMMER,%20K.&MUTSCHLER,%20A.&SORLIN,%20O.&BADER,%20V.&rft.genre=article


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