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dc.contributor.authorMurphy, David
dc.contributor.authorDetmold, William
dc.date.accessioned2022-01-18T16:15:37Z
dc.date.available2021-09-20T18:22:44Z
dc.date.available2022-01-18T16:15:37Z
dc.date.issued2019-05
dc.identifier.issn1824-8039
dc.identifier.urihttps://hdl.handle.net/1721.1/132500.2
dc.description.abstract© Copyright owned by the author(s) under the terms of the Creative Commons. While neutrino oscillation experiments have demonstrated that neutrinos have small, nonzero masses, much remains unknown about their properties and decay modes. One potential decay mode — neutrinoless double beta decay (0νββ) — is a particularly interesting target of experimental searches, since its observation would imply that the neutrino is a Majorana particle, demonstrate that lepton number conservation is violated in nature, and give further constraints on the neutrino masses and mixing angles. Relating experimental constraints on 0νββ decay rates to the neutrino masses, however, requires theoretical input in the form of non-perturbative nuclear matrix elements which remain difficult to calculate reliably. In this talk we will discuss progress towards first-principles calculations of relevant nuclear matrix elements using lattice QCD and effective field theory techniques, assuming neutrinoless double beta decay mediated by a light Majorana neutrino. We will show preliminary results for the π− → π+e−e− transition amplitude computed on a 163 ×32 domain wall fermion lattice with a pion mass of 420 MeV, and discuss improved methods applicable to general lattice calculations of 0νββ decay amplitudes.en_US
dc.language.isoen
dc.publisherSissa Medialaben_US
dc.relation.isversionofhttp://dx.doi.org/10.22323/1.334.0262en_US
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs Licenseen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.sourceProceedings of Scienceen_US
dc.titleNuclear Matrix Elements for Neutrinoless Double Beta Decay from Lattice QCDen_US
dc.typeArticleen_US
dc.contributor.departmentMassachusetts Institute of Technology. Center for Theoretical Physics
dc.relation.journalProceedings of Scienceen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2020-10-20T16:41:25Z
dspace.orderedauthorsMurphy, D; Detmold, Wen_US
dspace.date.submission2020-10-20T16:41:28Z
mit.journal.volume334en_US
mit.licensePUBLISHER_CC
mit.metadata.statusAuthority Work Neededen_US


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