Singlets in Composite Higgs Models in light of the LHC di-photon searches

A. Belyaev; G. Cacciapaglia; H. Cai; T. Flacke; A. Parolini; H. Serôdio

Singlets in Composite Higgs Models in light of the LHC di-photon searches

A. Belyaev G. Cacciapaglia ¹ H. Cai ¹ T. Flacke A. Parolini H. Serôdio

1 IPNL - Institut de Physique Nucléaire de Lyon

Abstract : Models of compositeness can successfully address the origin of the Higgs boson, as a pseudo-Goldstone of a spontaneously broken global symmetry, and flavour physics via the partial compositeness mechanism. If the dynamics is generated by a simple underlying theory defined in terms of a confining gauge group with fermionic matter content, there exists only a finite set of models that have the correct properties to account for the Higgs and top partners at the same time. As a prediction, one obtains additional light scalars. We explore the theory space of composite Higgs models and establish if the singlet, from the spontaneous breaking of a U(1) symmetry, is compatible with the recent di-photon excess at 750 GeV at the LHC.

Document type :

Journal articles

Domain :

Physics [physics] / High Energy Physics - Phenomenology [hep-ph]

Complete list of metadatas

http://hal.in2p3.fr/in2p3-01267457
Contributor : Dominique Girod <>
Submitted on : Thursday, February 4, 2016 - 2:30:02 PM
Last modification on : Thursday, March 15, 2018 - 11:40:10 AM

Singlets in Composite Higgs Models in light of the LHC di-photon searches

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Singlets in Composite Higgs Models in light of the LHC di-photon searches

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