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dc.contributor.authorBarrie, Neil D.en
dc.contributor.authorSugamoto, Akioen
dc.contributor.authorTakeuchi, Tatsuen
dc.contributor.authorYamashita, Kimikoen
dc.description.abstractWe consider the introduction of a complex scalar field carrying a global lepton number charge to the Standard Model and the Higgs inflation framework. The conditions are investigated under which this model can simultaneously ensure Higgs vacuum stability up to the Planck scale, successful inflation, non-thermal Leptogenesis via the pendulum mechanism, and light neutrino masses. These can be simultaneously achieved when the scalar lepton is minimally coupled to gravity, that is, when standard Higgs inflation and reheating proceed without the interference of the additional scalar degrees of freedom. If the scalar lepton also has a non-minimal coupling to gravity, a multi-field inflation scenario is induced, with interesting interplay between the successful inflation constraints and those from vacuum stability and Leptogenesis. The parameter region that can simultaneously achieve the above goals is explored.en
dc.description.sponsorshipWorld Premier International Research Center Initiative (WPI), MEXT, JapanMinistry of Education, Culture, Sports, Science and Technology, Japan (MEXT); US Department of EnergyUnited States Department of Energy (DOE) [DE-SC0020262]; US National Science Foundation (NSF)National Science Foundation (NSF) [1413031]; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative [2020PM0018]; National Center for Theoretical Sciences, Taiwanen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.subjectBeyond Standard Modelen
dc.subjectCosmology of Theories beyond the SMen
dc.subjectHiggs Physicsen
dc.subjectNeutrino Physicsen
dc.titleHiggs inflation, vacuum stability, and leptogenesisen
dc.typeArticle - Refereeden
dc.contributor.departmentCenter for Neutrino Physicsen
dc.description.notesWe would like to thank James Gray for helpful discussions. NDB is supported by theWorld Premier International Research Center Initiative (WPI), MEXT, Japan. TT is supported in part by the US Department of Energy (DE-SC0020262) and by the US National Science Foundation (NSF Grant 1413031). KY is supported by the Chinese Academy of Sciences (CAS) President's International Fellowship Initiative under Grant No. 2020PM0018. KY's work was also supported in part by the National Center for Theoretical Sciences, Taiwan.en
dc.title.serialJournal of High Energy Physicsen

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Creative Commons Attribution 4.0 International
License: Creative Commons Attribution 4.0 International