Ferreira, Pedro MiguelMorrison, L. A.Profumo, S.2020-06-222020-06-222020-04-21FERREIRA, Pedro Miguel; MORRISON, L. A.; PROFUMO, S. – One-loop charge-breaking minima in the two-Higgs doublet model. Journal of High Energy Physics. ISSN 1029-8479. N.º 4 (2020), pp. 1-331029-8479http://hdl.handle.net/10400.21/11937We analyze the vacuum structure of the one-loop effective potential in the two Higgs doublet model. We find that electroweak-breaking vacua can coexist with charge breaking ones, contradicting a theorem valid at tree-level. We perform a numerical analysis of the model and supply explicit parameter values for which charge-breaking vacua can be the global minimum of the theory, and deeper than charge-preserving ones.engHiggs physicsBeyond standard modelSpontaneous symmetry breakingjournal article10.1007/JHEP04(2020)125