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dc.contributor.authorGE, Z.
dc.contributor.authorERONEN, T.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorDE ROUBIN, A.
dc.contributor.authorTYRIN, K.S.
dc.contributor.authorCANETE, L.
dc.contributor.authorGELDHOF, S.
dc.contributor.authorJOKINEN, A.
dc.contributor.authorKANKAINEN, A.
dc.contributor.authorKOSTENSALO, J.
dc.contributor.authorKOTILA, J.
dc.contributor.authorKRIVORUCHENKO, M.I.
dc.contributor.authorMOORE, I.D.
dc.contributor.authorNESTERENKO, D.A.
dc.contributor.authorSUHONEN, J.
dc.contributor.authorVILÉN, M.
dc.date.issued2022
dc.description.abstractEnA precise determination of the ground state <sup loc="post">111</sup>In (<math altimg="si1.svg"><mn>9</mn><mo stretchy="false">/</mo><msup><mrow><mn>2</mn></mrow><mrow><mo linebreak="badbreak" linebreakstyle="after">+</mo></mrow></msup></math>) electron capture to ground state of <sup loc="post">111</sup>Cd (<math altimg="si2.svg"><mn>1</mn><mo stretchy="false">/</mo><msup><mrow><mn>2</mn></mrow><mrow><mo linebreak="badbreak" linebreakstyle="after">+</mo></mrow></msup></math>) Q value has been performed utilizing the double Penning trap mass spectrometer, JYFLTRAP. A value of 857.63(17) keV was obtained, which is nearly a factor of 20 more precise than the value extracted from the Atomic Mass Evaluation 2020 (AME2020). The high-precision electron-capture Q value measurement along with the nuclear energy level data of 866.60(6) keV, 864.8(3) keV, 855.6(10) keV, and 853.94(7) keV for <sup loc="post">111</sup>Cd was used to determine whether the four states are energetically allowed for a potential ultra-low Q-value β decay or electron-capture decay. Our results confirm that the excited states of 866.60(6) keV with spin-parity (<math altimg="si3.svg"><msup><mrow><mi>J</mi></mrow><mrow><mi>π</mi></mrow></msup></math>) of 3/2<sup loc="post">+</sup> and 864.8(3) keV with <math altimg="si4.svg"><msup><mrow><mi>J</mi></mrow><mrow><mi>π</mi></mrow></msup><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>3</mn><mo stretchy="false">/</mo><msup><mrow><mn>2</mn></mrow><mrow><mo linebreak="badbreak" linebreakstyle="after">+</mo></mrow></msup></math> are ruled out due to their deduced electron-capture Q value being smaller than 0 keV at the level of around 20σ and 50σ, respectively. Electron-capture decays to the excited states at 853.94(7) keV (<math altimg="si5.svg"><msup><mrow><mi>J</mi></mrow><mrow><mi>π</mi></mrow></msup><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>7</mn><mo stretchy="false">/</mo><msup><mrow><mn>2</mn></mrow><mrow><mo linebreak="badbreak" linebreakstyle="after">+</mo></mrow></msup></math>) and 855.6(10) keV (<math altimg="si4.svg"><msup><mrow><mi>J</mi></mrow><mrow><mi>π</mi></mrow></msup><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>3</mn><mo stretchy="false">/</mo><msup><mrow><mn>2</mn></mrow><mrow><mo linebreak="badbreak" linebreakstyle="after">+</mo></mrow></msup></math>), are energetically allowed with Q values of 3.69(19) keV and 2.0(10) keV, respectively. The allowed decay transition <sup loc="post">111</sup>In (9/2<sup loc="post">+</sup>) → <sup loc="post">111</sup>Cd (7/2<sup loc="post">+</sup>), with a Q value of 3.69(19) keV, is a potential new candidate for neutrino-mass measurements by future EC experiments featuring new powerful detection technologies. The results show that the indium level <math altimg="si6.svg"><mn>2</mn><msub><mrow><mi>p</mi></mrow><mrow><mn>1</mn><mo stretchy="false">/</mo><mn>2</mn></mrow></msub></math> for this decay branch leads to a significant increase in the number of EC events in the energy region sensitive to the electron neutrino mass.
dc.language.isoen
dc.subject.enPenning trap
dc.subject.enMass measurements
dc.subject.enUltra-low
dc.subject.envalue
dc.subject.enElectron capture
dc.subject.enNeutrino mass
dc.subject.enelectron: capture
dc.subject.enneutrino: mass
dc.subject.ennucleus: energy levels
dc.subject.enmass: spectrometer
dc.subject.enexcited state
dc.subject.enground state
dc.subject.enindium
dc.subject.enexperimental results
dc.title.enHigh-precision electron-capture Q value measurement of 111In for electron-neutrino mass determination
dc.typeArticle de revue
dc.identifier.doi10.1016/j.physletb.2022.137226
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
dc.identifier.arxiv2201.12573
bordeaux.journalPhys.Lett.B
bordeaux.page137226
bordeaux.volume832
bordeaux.peerReviewedoui
hal.identifierhal-03572435
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03572435v1
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=832&amp;rft.spage=137226&amp;rft.epage=137226&amp;rft.au=GE,%20Z.&amp;ERONEN,%20T.&amp;DE%20ROUBIN,%20A.&amp;TYRIN,%20K.S.&amp;CANETE,%20L.&amp;rft.genre=article


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