dc.contributor.author | Ejiri, H. | |
dc.contributor.author | Soukouti, N. | |
dc.contributor.author | Suhonen, Jouni | |
dc.date.accessioned | 2016-01-25T06:41:55Z | |
dc.date.available | 2016-01-25T06:41:55Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Ejiri, H., Soukouti, N., & Suhonen, J. (2014). Spin-dipole nuclear matrix elements for double beta decays and astro-neutrinos. <i>Physics Letters B</i>, <i>729</i>(February), 27-32. <a href="https://doi.org/10.1016/j.physletb.2013.12.051" target="_blank">https://doi.org/10.1016/j.physletb.2013.12.051</a> | |
dc.identifier.other | CONVID_23753831 | |
dc.identifier.other | TUTKAID_62316 | |
dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/48443 | |
dc.description.abstract | Spin-dipole (SD) nuclear matrix elements (NMEs) M±(SD2) for unique first forbidden β± 2− →
0+ ground-state-to-ground-state transitions are studied by using effective microscopic two-nucleon
interactions in realistic single-particle model spaces. The observed values of the NMEs M±
exp(SD2) are
compared with the values of the single-quasiparticle NMEs M±
qp(SD2) without nucleon spin–isospin (σ τ )
correlation and the QRPA NMEs M±
QRPA(SD2) with the σ τ correlation. The observed SD matrix elements
are found to be reduced by the factor k ≈ 0.2 with respect to M±
qp(SD2) and by the factor kNM ≈ 0.5 with
respect to M±
QRPA(SD2). We then infer that the SD NME is reduced considerably partly by the nucleon
σ τ correlations and partly by other non-nucleonic and nucleonic correlations which are not explicitly
included in the QRPA. Impact of the found reduction factors on the magnitudes of the NMEs involved in
neutrino-less double beta decays and astro-neutrino interactions are discussed. | |
dc.language.iso | eng | |
dc.publisher | Elsevier BV * North-Holland | |
dc.relation.ispartofseries | Physics Letters B | |
dc.subject.other | spin-dipole matrix element | |
dc.subject.other | unique forbidden beta decay | |
dc.subject.other | double beta decay | |
dc.subject.other | renormalization of the axial-vector weak | |
dc.subject.other | coupling constant | |
dc.title | Spin-dipole nuclear matrix elements for double beta decays and astro-neutrinos | |
dc.type | article | |
dc.identifier.urn | URN:NBN:fi:jyu-201601201201 | |
dc.contributor.laitos | Fysiikan laitos | fi |
dc.contributor.laitos | Department of Physics | en |
dc.contributor.oppiaine | Fysiikka | fi |
dc.contributor.oppiaine | Physics | en |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | |
dc.date.updated | 2016-01-20T13:15:23Z | |
dc.type.coar | http://purl.org/coar/resource_type/c_2df8fbb1 | |
dc.description.reviewstatus | peerReviewed | |
dc.format.pagerange | 27-32 | |
dc.relation.issn | 0370-2693 | |
dc.relation.numberinseries | February | |
dc.relation.volume | 729 | |
dc.type.version | publishedVersion | |
dc.rights.copyright | © 2013 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3. | |
dc.rights.accesslevel | openAccess | fi |
dc.rights.url | http://creativecommons.org/licenses/by/3.0/ | |
dc.relation.doi | 10.1016/j.physletb.2013.12.051 | |
dc.type.okm | A1 | |