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Vacuum alignment in a composite 2HDM

Year: 2019
Type: article
Abstract: We study in detail the vacuum structure of a composite two Higgs doublet model based on a minimal underlying theory with 3 Dirac fermions in pseudo-real representations of the condensing gauge interactions, leading to the SU(6)/Sp(6) symmetry breaking pattern. We find that, independently on the source of top mass, the most general CP-conserving vacuum is characterised by three non-vanishing angles. A special case occurs if the Yukawas are aligned, leading to a single angle. In the latter case, a Dark Matter candidate arises, protected by a global U(1) symmetry.
DOI: 10.1007/jhep01(2019)130
Authors: Chengfeng Cai, Hong-Hao Zhang, Giacomo Cacciapaglia
Institutions: Sun Yat-sen University, Centre National de la Recherche Scientifique, Université de Lyon, Institut National de Physique Nucléaire et de Physique des Particules, Institute of Nuclear Physics of Lyon, Institut de Physique des 2 Infinis de Lyon
Language: English
Open Access status: diamond
Funders: Institut des Origines de Lyon, Agence Nationale de la Recherche, National Natural Science Foundation of China, Sun Yat-sen University, China Postdoctoral Science Foundation, Natural Science Foundation of Guangdong Province
Awards: G2669273944, G5784804757, G7240651115, G7264742188, G7376787254, G7807731452, G81489234, G833113158, Lyon Institute of Origins
OpenAlex ID: W2803253389
FWCI: 4.412
Cites: 59
Cited by: 49
Related to: 10