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$^{57}$Zn $\beta$-delayed proton emission establishes the $^{56}$Ni $rp$-process waiting point bypass

dc.contributor.authorSAXENA, M.
dc.contributor.authorONG, W. -J
dc.contributor.authorMEISEL, Z.
dc.contributor.authorHOFF, D.E.M.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorSMIRNOVA, N.
dc.contributor.authorBENDER, P.C.
dc.contributor.authorBURCHER, S.P.
dc.contributor.authorCARPENTER, M.P.
dc.contributor.authorCARROLL, J.J.
dc.contributor.authorCHESTER, A.
dc.contributor.authorCHIARA, C.J.
dc.contributor.authorCONAWAY, R.
dc.contributor.authorCOPP, P.A.
dc.contributor.authorCRIDER, B.P.
dc.contributor.authorDERKIN, J.
dc.contributor.authorESTRADE, A.
dc.contributor.authorHAMAD, G.
dc.contributor.authorHARKE, J.T.
dc.contributor.authorJAIN, R.
dc.contributor.authorJAYATISSA, H.
dc.contributor.authorLIDDICK, S.N.
dc.contributor.authorLONGFELLOW, B.
dc.contributor.authorMOGANNAM, M.
dc.contributor.authorMONTES, F.
dc.contributor.authorNEPAL, N.
dc.contributor.authorOGUNBEKU, T.H.
dc.contributor.authorRICHARD, A.L.
dc.contributor.authorSCHATZ, H.
dc.contributor.authorSOLTESZ, D.
dc.contributor.authorSUBEDI, S.K.
dc.contributor.authorSULTANA, I.
dc.contributor.authorTAMASHIRO, A.S.
dc.contributor.authorTRIPATHI, V.
dc.contributor.authorXIAOG, Y.
dc.contributor.authorZINK, R.
dc.date.accessioned2022-04-19T12:03:59Z
dc.date.available2022-04-19T12:03:59Z
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/136659
dc.description.abstractEnWe measured the $^{57}$Zn $\beta$-delayed proton ($\beta$p) and $\gamma$ emission at the National Superconducting Cyclotron Laboratory. We find a $^{57}$Zn half-life of 43.6 $\pm$ 0.2 ms, $\beta$p branching ratio of (84.7 $\pm$ 1.4)%, and identify four transitions corresponding to the exotic $\beta$-$\gamma$-$p$ decay mode, the second such identification in the $f p$-shell. The $p/\gamma$ ratio was used to correct for isospin mixing while determining the $^{57}$Zn mass via the isobaric multiplet mass equation. Previously, it was uncertain as to whether the rp-process flow could bypass the textbook waiting point $^{56}$Ni for astrophysical conditions relevant to Type-I X-ray bursts. Our results definitively establish the existence of the $^{56}$Ni bypass, with 14-17% of the $rp$-process flow taking this route.
dc.language.isoen
dc.title.en$^{57}$Zn $\beta$-delayed proton emission establishes the $^{56}$Ni $rp$-process waiting point bypass
dc.typeDocument de travail - Pré-publication
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]
dc.identifier.arxiv2204.01621
bordeaux.hal.laboratoriesCentre d'Études Nucléaires de Bordeaux Gradignan (CENBG)*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
hal.identifierhal-03635091
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03635091v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=SAXENA,%20M.&ONG,%20W.%20-J&MEISEL,%20Z.&HOFF,%20D.E.M.&SMIRNOVA,%20N.&rft.genre=preprint


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