Phase Transition in the Aligned Two-Higgs Doublets Model When the Goldstone Theorem is Conserved
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Abstract
This paper studies the phase transition in the aligned two-Higgs doublet model by applying the Cornwall-Jackiw-Tomboulis effective potential in the double-bubble approximation. Its main feature is that the Goldstone theorem is restored in the model by adjusting the CJT effective potential, and the phase transition is of the second-order type, following the symmetry restoration scenario.
Keywords:
Aligned two Higgs doublet model (A-THDM), Cornwall-Jackiw-Tomboulis (CJT), Standard Model (SM), Charge Conjugation Parity (CP), vacuum expectation values (VEV).
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