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Advisor(s)
Abstract(s)
The vacuum structure of the inert doublet model is analysed at the one-loop level using the effective potential formalism, to verify the validity of tree-level predictions for the properties of the global minimum. An inert minimum (with massive fermions) and an inert-like minimum (with massless fermions) can coexist at tree level. But the one-loop analysis reveals that the allowed parameter space for the coexistence of more than one minimum is larger than the tree-level expected one. It is also shown that for some choices of parameters, the global minimum found at the one-loop level may be inert (or inert-like), contrary to what the tree-level analysis indicates.
Description
Keywords
Beyond Standard Model Higgs Physics Spontaneous Symmetry Breaking
Citation
FERREIRA, P. M.; SWIEZEWSKA, Bogumila. - One-loop contributions to neutral minima in the inert doublet model. Journal of High Energy Physics. ISSN: 1029-8479. N.º4 (2016), pp.1-35