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Low-scale leptogenesis assisted by a real scalar singlet
Tommi Alanne, Thomas Hugle, Moritz Platscher +1
Standard thermal leptogenesis in the type-I seesaw model requires very heavy right-handed neutrinos (RHNs). This makes it hard to probe this scenario experimentally and results in…
Planck mass and inflation as consequences of dynamically broken scale invariance
Jisuke Kubo, Manfred Lindner, Kai Schmitz +1
Classical scale invariance represents a promising framework for model building beyond the Standard Model. However, once coupled to gravity, any scale-invariant microscopic model re…
Axion Isocurvature Perturbations in Low-Scale Models of Hybrid Inflation
Kai Schmitz, Tsutomu T. Yanagida
The QCD axion solves the strong CP problem and represents an attractive particle candidate for cold dark matter (CDM). However, quantum fluctuations of the axion field during infla…
Low-Scale Leptogenesis in the Scotogenic Neutrino Mass Model
Thomas Hugle, Moritz Platscher, Kai Schmitz
The scotogenic model proposed by Ernest Ma represents an attractive and minimal example for the generation of small Standard Model neutrino masses via radiative corrections in the…