Electroweak phase transition with composite Higgs models: calculability, gravitational waves and collider searches. (arXiv:1909.02014v1 [hep-ph])
<a href="http://arxiv.org/find/hep-ph/1/au:+Bian_L/0/1/0/all/0/1">Ligong Bian</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Wu_Y/0/1/0/all/0/1">Yongcheng Wu</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Xie_K/0/1/0/all/0/1">Ke-Pan Xie</a>
We study the strong first order electroweak phase transition (SFOEWPT) with
the $SO(6)/SO(5)$ composite Higgs model, whose scalar sector contains one Higgs
doublet and one real singlet. Six benchmark models are built with fermion
embeddings in $textbf{1}$, $textbf{6}$, and $textbf{15}$ of $SO(6)$. We show
that SFOEWPT cannot be triggered under the minimal Higgs potential hypothesis,
which assumes the scalar potential is dominated by the form factors from the
lightest composite resonances. To get a SFOEWPT, the contributions from local
operators induced by physics above the cutoff scale are needed. We take the
$textbf{6}+textbf{6}$ model as an example to investigate the gravitational
waves prediction and the related collider phenomenology.
We study the strong first order electroweak phase transition (SFOEWPT) with
the $SO(6)/SO(5)$ composite Higgs model, whose scalar sector contains one Higgs
doublet and one real singlet. Six benchmark models are built with fermion
embeddings in $textbf{1}$, $textbf{6}$, and $textbf{15}$ of $SO(6)$. We show
that SFOEWPT cannot be triggered under the minimal Higgs potential hypothesis,
which assumes the scalar potential is dominated by the form factors from the
lightest composite resonances. To get a SFOEWPT, the contributions from local
operators induced by physics above the cutoff scale are needed. We take the
$textbf{6}+textbf{6}$ model as an example to investigate the gravitational
waves prediction and the related collider phenomenology.
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