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Competition between $β$-delayed proton and $β$-delayed $γ$ decay of the exotic $T_z$ = -2 nucleus $^{56}$Zn and fragmentation of the IAS

dc.contributor.authorRUBIO, B.
dc.contributor.authorORRIGO, S.E.A.
dc.contributor.authorFUJITA, Y.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorBLANK, Bertram
dc.contributor.authorGELLETLY, W.
dc.contributor.authorAGRAMUNT, J.
dc.contributor.authorALGORA, A.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorASCHER, P.
dc.contributor.authorBILGIER, B.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorCACERES, L.
dc.contributor.authorCAKIRLI, R.B.
dc.contributor.authorFUJITA, H.
dc.contributor.authorGANIOGLU, E.
dc.contributor.authorGERBAUX, M.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGIOVINAZZO, J.
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.authorKAMALOU, O.
dc.contributor.authorKOZER, H.C.
dc.contributor.authorKUCUK, L.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorKURTUKIAN NIETO, T.
dc.contributor.authorMOLINA, F.
dc.contributor.authorPOPESCU, L.
dc.contributor.authorROGERS, A.M.
dc.contributor.authorSUSOY, G.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorSTODEL, C.
dc.contributor.authorSUZUKI, T.
dc.contributor.authorTAMII, A.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorTHOMAS, J.C.
dc.date.created2015-01-15
dc.date.issued2015
dc.date.conference2014-06-01
dc.description.abstractEnA very exotic decay mode at the proton drip-line, $\beta$-delayed $\gamma$-proton decay, has been observed in the $\beta$ decay of the $T_z$ = -2 nucleus $^{56}$Zn. Three $\gamma$-proton sequences have been observed following the $\beta$ decay. The fragmentation of the IAS in $^{56}$Cu has also been observed for the first time. The results were reported in a recent publication. At the time of publication the authors were puzzled by the competition between proton and $\gamma$ decays from the main component of the IAS. Here we outline a possible explanation based on the nuclear structure properties of the three nuclei involved, namely $^{56}$Zn, $^{56}$Cu and $^{55}$Ni, close to the doubly magic nucleus $^{56}$Ni. From the fragmentation of the Fermi strength and the excitation energy of the two populated 0$^{+}$ states we could deduce the off-diagonal matrix element of the charge-dependent part of the Hamiltonian responsible for the mixing. These results are compared with the decay of $^{55}$Cu with one proton less than $^{56}$Zn. For completeness we summarise the results already published.
dc.language.isoen
dc.source.titleJPS Conf. Proc.
dc.subject.enGamow-Teller transitions
dc.subject.enCharge-exchange reactions
dc.subject.enIsospin mixing
dc.subject.enproton-rich nuclei
dc.subject.en56Zn
dc.subject.enIsospin symmetry
dc.subject.enfragmentation of the IAS
dc.subject.en-delayed -proton decay
dc.title.enCompetition between $β$-delayed proton and $β$-delayed $γ$ decay of the exotic $T_z$ = -2 nucleus $^{56}$Zn and fragmentation of the IAS
dc.typeCommunication dans un congrès
dc.identifier.doi10.7566/JPSCP.6.020048
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
dc.identifier.arxiv1501.03390
bordeaux.page020048
bordeaux.volume6
bordeaux.countryJP
bordeaux.title.proceedingJPS Conf. Proc.
bordeaux.conference.cityTokyo
bordeaux.peerReviewedoui
hal.identifierin2p3-01104065
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.end2014-06-06
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-01104065v1
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