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Lepto-axiogenesis and the scale of supersymmetry / Barnes, Patrick (Michigan U., LCTP) ; Co, Raymond T. (Minnesota U., Theor. Phys. Inst.) ; Harigaya, Keisuke (CERN) ; Pierce, Aaron (Michigan U., LCTP)
If the Peccei-Quinn field containing the QCD axion undergoes rotations in the early universe, the dimension-five operator responsible for neutrino masses can generate a lepton asymmetry that ultimately gives rise to the observed baryon asymmetry of the Universe. This lepto-axiogenesis scenario requires a flat potential for the radial direction of the Peccei-Quinn field, naturally realized in supersymmetric models. [...]
arXiv:2208.07878; LCTP-22-12; UMN-TH-4130/22; FTPI-MINN-22-21; CERN-TH-2022-136.- 2023-05-15 - 59 p. - Published in : JHEP 2305 (2023) 114 Fulltext: 2208.07878 - PDF; document - PDF;

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