Composite Higgs revealed in Higgs pair photo-production at future colliders

Bharucha, Aoife; Cacciapaglia, Giacomo; Deandrea, Aldo; Gaur, Naveen; Harada, Daisuke; Mahmoudi, Farvah; Sridhar, K. (2021) Composite Higgs revealed in Higgs pair photo-production at future colliders. Journal of High Energy Physics, 2021 (9). ISSN 1029-8479

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Abstract

The next generation electron-positron colliders are designed for precision studies of the Standard Model and its extensions, in particular in the Higgs sector. We consider the potential for discovery of composite Higgs models in Higgs pair production through photon collisions. This process is loop-generated, thus it provides access to all Higgs couplings and can show new physics effects in polarized and unpolarized cross-sections starting at relatively low collider energies. It is, therefore, relevant for all electron-positron colliders planned or in preparation. Sizeable deviations from the Standard Model predictions are present in a general class of composite Higgs models, as couplings of one or more Higgs bosons to fermions, or fermionic and scalar resonances, modify the destructive interference present in the Standard Model. In particular, large effects are due to the new quartic coupling of the Higgs to tops and to the presence of a light scalar resonance.

Item Type:	Article
Uncontrolled Keywords:	Higgs Physics ; Beyond Standard Model ; Technicolor and Composite Models
Subjects:	NATURAL SCIENCES NATURAL SCIENCES > Physics
Divisions:	Theoretical Physics Division
Depositing User:	Kristina Ciglar
Date Deposited:	17 Dec 2022 17:31
URI:	http://fulir.irb.hr/id/eprint/7746
DOI:	10.1007/JHEP09(2021)069

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