Falsifying high-scale baryogenesis with neutrinoless double beta decay and lepton flavor violation
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Falsifying high-scale baryogenesis with neutrinoless double beta decay and lepton flavor violation

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Falsifying high-scale baryogenesis with neutrinoless double beta decay and lepton flavor violation

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Deppisch, Frank F.; Harz, Julia; Huang, Wei-Chih; Hirsch, Martin; Päs, Heinrich
Aquest document és un/a article, creat/da en: 2015
Interactions that manifest themselves as lepton number violating processes at low energies in combination with sphaleron transitions typically erase any preexisting baryon asymmetry of the Universe. In this article, we discuss the constraints obtained from an observation of neutrinoless double beta decay in this context. If a new physics mechanism of neutrinoless double beta decay other than the standard light neutrino exchange is observed, typical scenarios of high-scale baryogenesis will be excluded unless the baryon asymmetry is stabilized via some new mechanism. We also sketch how this conclusion can be extended beyond the first lepton generation by incorporating lepton flavor violating processes.

    Deppisch, Frank F. Harz, Julia Huang, Wei-Chih Hirsch, Martin Päs, Heinrich 2015 Falsifying high-scale baryogenesis with neutrinoless double beta decay and lepton flavor violation Physical Review D 92 3 036005
http://dx.doi.org/10.1103/PhysRevD.92.036005
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