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Mirror symmetry at mass A = 54: E4 effective charges near doubly magic $^{56}$Ni

dc.contributor.authorRUDOLPH, D.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorBLANK, B.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGIOVINAZZO, J.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorROGER, T.
dc.contributor.authorALVAREZ-POL, H.
dc.contributor.authorAROKIA RAJ, A.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorASCHER, P.
dc.contributor.authorCAAMAÑO-FRESCO, M.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorCACERES, L.
dc.contributor.authorCOX, D.M.
dc.contributor.authorFERNÁNDEZ-DOMÍNGUEZ, B.
dc.contributor.authorLOIS-FUENTES, J.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGERBAUX, M.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGRÉVY, S.
dc.contributor.authorGRINYER, G.F.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorKAMALOU, O.
dc.contributor.authorMAUSS, B.
dc.contributor.authorMENTANA, A.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorPANCIN, J.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorPIBERNAT, J.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorPIOT, J.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorSORLIN, O.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorSTODEL, Ch.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorTHOMAS, J.-C.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorVERSTEEGEN, M.
dc.date.accessioned2023-11-20T16:50:54Z
dc.date.available2023-11-20T16:50:54Z
dc.date.issued2022
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/185074
dc.description.abstractEnProton-emission branches of the <math altimg="si1.svg"><msup><mrow><mn>10</mn></mrow><mrow><mo linebreak="badbreak" linebreakstyle="after">+</mo></mrow></msup></math> isomer in the <math altimg="si2.svg"><msub><mrow><mi>T</mi></mrow><mrow><mi>z</mi></mrow></msub><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mo linebreak="badbreak" linebreakstyle="after">−</mo><mn>1</mn></math> nucleus <sup loc="post">54</sup>Ni have been imaged with the active target and time projection chamber (ACTAR TPC) in an experiment conducted at the Grand Accélérateur National d'Ions Lourds (GANIL). The completed decay scheme allows derivation of the reduced transition strengths, <math altimg="si3.svg"><mi>B</mi><mo stretchy="false">(</mo><mi>E</mi><mn>2</mn><mo>;</mo><msup><mrow><mn>10</mn></mrow><mrow><mo linebreak="badbreak" linebreakstyle="after">+</mo></mrow></msup><mo stretchy="false">→</mo><mspace width="0.2em"/><msup><mrow><mn>8</mn></mrow><mrow><mo linebreak="badbreak" linebreakstyle="after">+</mo></mrow></msup><mo stretchy="false">)</mo></math> and <math altimg="si4.svg"><mi>B</mi><mo stretchy="false">(</mo><mi>E</mi><mn>4</mn><mo>;</mo><msup><mrow><mn>10</mn></mrow><mrow><mo linebreak="badbreak" linebreakstyle="after">+</mo></mrow></msup><mo stretchy="false">→</mo><mspace width="0.2em"/><msup><mrow><mn>6</mn></mrow><mrow><mo linebreak="badbreak" linebreakstyle="after">+</mo></mrow></msup><mo stretchy="false">)</mo></math>, for the two competing γ-ray transitions. By means of a comparison with their well-known ‘mirror transitions’ in <math altimg="si5.svg"><msub><mrow><mi>T</mi></mrow><mrow><mi>z</mi></mrow></msub><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mo linebreak="badbreak" linebreakstyle="after">+</mo><mn>1</mn></math><sup loc="post">54</sup>Fe, and aided by a variety of shell-model calculations in the fp model space, effective charges for E4 transitions near <math altimg="si6.svg"><mi>N</mi><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mi>Z</mi></math><sup loc="post">56</sup>Ni can be deduced: <math altimg="si7.svg"><msub><mrow><mi>ε</mi></mrow><mrow><mi>π</mi></mrow></msub><mo>≈</mo><mn>1.40</mn></math> and <math altimg="si8.svg"><msub><mrow><mi>ε</mi></mrow><mrow><mi>ν</mi></mrow></msub><mo>≈</mo><mn>0.30</mn></math>. Mirror-energy differences are explored with various shell-model interactions and isospin-symmetry breaking terms.
dc.language.isoen
dc.subject.enNi
dc.subject.enNuclear shell model
dc.subject.enIsospin symmetry
dc.subject.enElectromagnetic decay
dc.subject.en4 transition
dc.subject.enEffective charges
dc.title.enMirror symmetry at mass A = 54: E4 effective charges near doubly magic $^{56}$Ni
dc.typeArticle de revue
dc.identifier.doi10.1016/j.physletb.2022.137144
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
bordeaux.journalPhys.Lett.B
bordeaux.page137144
bordeaux.volume830
bordeaux.hal.laboratoriesCentre d'Études Nucléaires de Bordeaux Gradignan (CENBG)*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-03667520
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03667520v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Phys.Lett.B&amp;rft.date=2022&amp;rft.volume=830&amp;rft.spage=137144&amp;rft.epage=137144&amp;rft.au=RUDOLPH,%20D.&amp;BLANK,%20B.&amp;GIOVINAZZO,%20J.&amp;ROGER,%20T.&amp;ALVAREZ-POL,%20H.&amp;rft.genre=article


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