Probing composite models at the LHC with exotic quarks production
Résumé
After the Higgs boson hunt, the LHC could be a powerful tool to unravel the mystery of which physics lies beyond the realm of the Standard Model. Different new sectors have been postulated to address naturalness: SUSY, extra dimensions and strong dynamics theories. Composite models extend EWSB to a global symmetry breaking whose pseudo-Goldstone boson is the SM Higgs boson. The resulting mass spectrum originates from a partial mixing between fundamental fermions and composite fields which creates massive states including new heavy quarks coupled preferentially to the top quark. Searches for these top partners have been carried out by the ATLAS and CMS collaborations, constraining the models. Other composite contributions are expected to enhance the 4-top production, which should be observable in the next years at the LHC.
Mots clés
p p: scattering
p p: colliding beams
model: composite
top: multiple production
heavy quark: coupling
quark: production
quark: exotic
electroweak interaction: symmetry breaking
CERN LHC Coll
Higgs particle
Goldstone particle
higher-dimensional
mass spectrum
supersymmetry
naturalness
mixing
ATLAS
CMS
experimental results
Origine : Fichiers produits par l'(les) auteur(s)
licence : CC BY - Paternité
licence : CC BY - Paternité