PTPlot

PTPlot: Composite Higgs models benchmark points

Benchmark points for minimal composite Higgs models, featuring a PNGB Higgs and a PNGB dilaton (supplied by G. Servant).

Composite Higgs models, which aim at addressing the hierarchy problem, are a natural framework for very supercooled EW phase transitions. The Lagrangian and the parameter regions are given in Section III and Section VI respectively of https://arxiv.org/pdf/1804.07314.pdf, Figure 16 of that paper shows typical values of $\alpha$ and $\beta/H$. In this framework, the dynamics of the EW phase transition is governed by the interplay between the dilaton and the Higgs fields. In these models where a very large number of degrees of freedom become massive during the phase transition, the friction and the bubble wall velocity have not yet been computed and v_w is set to 0.95 for illustration. Benchmark points correspond to two categories where the dilaton (a composite particle) is either a meson-like or a glueball-like state.

General parameters used for plotting: $v_\mathrm{w} = 0.95$, $T_* = 150.0 \, \mathrm{GeV}$ (when all points are plotted), $g_* = 106.75$.

Mission profile: Science Requirements Document (3 years)

Full list of points:

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