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Searching for New Physics in Two-Neutrino Double Beta Decay

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dc.contributor.author Deppisch, Frank F.
dc.contributor.author Graf, Lukas
dc.contributor.author Šimkovic, Fedor
dc.date.accessioned 2020-12-03T22:13:47Z
dc.date.available 2020-12-03T22:13:47Z
dc.date.issued 2020-10-19
dc.identifier.citation DEPPISCH, Frank F., Lukas GRAF a Fedor ŠIMKOVIC, 2020. Searching for New Physics in Two-Neutrino Double Beta Decay. Physical Review Letters [online]. 2020, roč. 125, č. 17, s. 171801. ISSN 0031-9007, 1079-7114. Dostupné na: doi:10.1103/PhysRevLett.125.171801 en_US
dc.identifier.issn 0031-9007
dc.identifier.uri https://dspace.uniba.sk/xmlui/handle/123456789/5
dc.description journal article en_US
dc.description.abstract Motivated by nonzero neutrino masses and the possibility of new physics discovery, a number of experiments search for neutrinoless double beta decay. While hunting for this hypothetical nuclear process, a significant amount of two-neutrino double beta decay data have become available. Although these events are regarded and studied mostly as the background of neutrinoless double beta decay, they can also be used to probe physics beyond the standard model. In this Letter, we show how the presence of right-handed leptonic currents would affect the energy distribution and angular correlation of the outgoing electrons in two-neutrino double beta decay. Consequently, we estimate constraints imposed by currently available data on the existence of right-handed neutrino interactions without having to assume their nature. In this way, our results complement the bounds coming from the nonobservation of neutrinoless double beta decay as they limit also the exotic interactions of Dirac neutrinos.We perform a detailed calculation of two-neutrino double beta decay under the presence of exotic (axial-) vector currents, and we demonstrate that current experimental searches can be competitive to existing limits. en_US
dc.language.iso en en_US
dc.publisher American Physical Society en_US
dc.subject Research Subject Categories::NATURAL SCIENCES en_US
dc.title Searching for New Physics in Two-Neutrino Double Beta Decay en_US
dc.type Article en_US


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