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dc.contributor.authorKotila, Jenni
dc.date.accessioned2021-07-12T10:42:03Z
dc.date.available2021-07-12T10:42:03Z
dc.date.issued2021
dc.identifier.citationKotila, J. (2021). Comparison of Microscopic Interacting Boson Model and Quasiparticle Random Phase Approximation 0νββ Decay Nuclear Matrix Elements. <i>Frontiers in Astronomy and Space Sciences</i>, <i>8</i>, Article 652180. <a href="https://doi.org/10.3389/fspas.2021.652180" target="_blank">https://doi.org/10.3389/fspas.2021.652180</a>
dc.identifier.otherCONVID_98978167
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/77104
dc.description.abstractThe fundamental nature of the neutrino is presently a subject of great interest. A way to access the absolute mass scale and the fundamental nature of the neutrino is to utilize the atomic nuclei through their rare decays, the neutrinoless double beta (0νββ) decay in particular. The experimentally measurable observable is the half-life of the decay, which can be factorized to consist of phase space factor, axial vector coupling constant, nuclear matrix element, and function containing physics beyond the standard model. Thus reliable description of nuclear matrix element is of crucial importance in order to extract information governed by the function containing physics beyond the standard model, neutrino mass parameter in particular. Comparison of double beta decay nuclear matrix elements obtained using microscopic interacting boson model (IBM-2) and quasiparticle random phase approximation (QRPA) has revealed close correspondence, even though the assumptions in these two models are rather different. The origin of this compatibility is not yet clear, and thorough investigation of decomposed matrix elements in terms of different contributions arising from induced currents and the finite nucleon size is expected to contribute to more accurate values for the double beta decay nuclear matrix elements. Such comparison is performed using detailed calculations on both models and obtained results are then discussed together with recent experimental results.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherFrontiers Media SA
dc.relation.ispartofseriesFrontiers in Astronomy and Space Sciences
dc.rightsCC BY 4.0
dc.subject.otherdouble beta decay
dc.subject.othernuclear matrix element
dc.subject.othermicroscopic interacting boson model
dc.subject.otherquasiparticle random phase approximation
dc.subject.otherphysics beyond the standard model
dc.titleComparison of Microscopic Interacting Boson Model and Quasiparticle Random Phase Approximation 0νββ Decay Nuclear Matrix Elements
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202107124289
dc.contributor.laitosKoulutuksen tutkimuslaitosfi
dc.contributor.laitosFinnish Institute for Educational Researchen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn2296-987X
dc.relation.volume8
dc.type.versionpublishedVersion
dc.rights.copyright© 2021 Kotila.
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber320062
dc.relation.grantnumber314733
dc.subject.ysohiukkasfysiikka
dc.subject.ysohiukkasfysiikan standardimalli
dc.subject.ysoydinfysiikka
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p15576
jyx.subject.urihttp://www.yso.fi/onto/yso/p27292
jyx.subject.urihttp://www.yso.fi/onto/yso/p14759
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.3389/fspas.2021.652180
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
jyx.fundingprogramAkatemiatutkijan tutkimuskulut, SAfi
jyx.fundingprogramAkatemiatutkija, SAfi
jyx.fundingprogramResearch costs of Academy Research Fellow, AoFen
jyx.fundingprogramAcademy Research Fellow, AoFen
jyx.fundinginformationThis research was funded by the Academy of Finland, Grant Nos. 314733 and 320062.


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