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Higgs-inflaton coupling from reheating and the metastable Universe
Christian Gross, Oleg Lebedev, Marco Zatta
Current Higgs boson and top quark data favor metastability of our vacuum which raises questions as to why the Universe has chosen an energetically disfavored state and remained the…
Non-Abelian gauge fields as dark matter
Christian Gross, Oleg Lebedev, Yann Mambrini
SU(N) Lie algebras possess discrete symmetries which can lead naturally to stable vector dark matter (DM). In this work, we consider the possibility that the dark SU(N) sector coup…
A second Higgs from the Higgs portal
Adam Falkowski, Christian Gross, Oleg Lebedev
In the Higgs portal framework, the Higgs field generally mixes with the Standard Model singlet leading to the existence of two states, one of which is identified with the 125 GeV s…