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arXiv · 1511.02879

One-loop contributions to neutral minima in the inert doublet model

P. M. Ferreira·Bogumila Swiezewska
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Abstract

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.

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P. M. Ferreira, Bogumila Swiezewska. 2016-08-14. One-loop contributions to neutral minima in the inert doublet model. https://doi.org/10.1007/jhep04(2016)099

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