Results 11 to 20 of about 136 (83)
Journal of High Energy Physics, 2017 Higgs boson compositeness is a phenomenologically viable scenario addressing the hierarchy problem. In minimal models, the Higgs boson is the only degree of freedom of the strong sector below the strong interaction scale.
Mikael Chala +4 more
doaj +1 more source
The light composite Higgs boson in strong extended technicolor
Journal of High Energy Physics, 2017 This paper extends an earlier one describing the Higgs boson H as a light composite scalar in a strong extended technicolor model of electroweak symmetry breaking. The Higgs mass M H is made much smaller than ΛETC by tuning the ETC coupling very close to
Kenneth Lane, Lukas Pritchett
doaj +1 more source
Journal of High Energy Physics, 2018 Many composite Higgs models predict the existence of vector-like quarks with masses outside the reach of the LHC, e.g. m Q ≳ 2 TeV, in particular if these models contain a dark matter candidate.
Mikael Chala +2 more
doaj +1 more source
The W boson mass weighs in on the non-standard Higgs
Physics Letters B, 2022 We consider the implications of the CDF collaboration high-precision measurement of the W boson mass on models with a non-standard Higgs. We show that this requires an enhancement of more than 5% in the non-standard Higgs coupling to the gauge bosons ...
Giacomo Cacciapaglia, Francesco Sannino
doaj +1 more source
Electroweak symmetry breaking and collider signatures in the next-to-minimal composite Higgs model
Journal of High Energy Physics, 2017 We conduct a detailed numerical analysis of the composite pseudo-Nambu-Goldstone Higgs model based on the next-to-minimal coset SO(6)/SO(5) ≅ SU(4)/Sp(4), featuring an additional SM singlet scalar in the spectrum, which we allow to mix with the Higgs ...
Christoph Niehoff +2 more
doaj +1 more source
The LHC potential of vector-like quark doublets
Journal of High Energy Physics, 2018 The existence of new vector-like quarks is often predicted by models of new physics beyond the Standard Model, and the development of discovery strategies at colliders is the object of an intense effort from the high-energy community.
Giacomo Cacciapaglia +5 more
doaj +1 more source
Effective theories of dark mesons with custodial symmetry
Journal of High Energy Physics, 2019 Dark mesons are bosonic composites of a new, strongly-coupled sector beyond the Standard Model. We consider several dark sectors with fermions that transform under the electroweak group, as arise from a variety of models including strongly-coupled ...
Graham D. Kribs, Adam Martin, Tom Tong
doaj +1 more source
Collider tests of the Renormalizable Coloron Model
Journal of High Energy Physics, 2018 The coloron, a massive version of the gluon present in gauge extensions of QCD, has been searched for at the LHC as a dijet or top quark pair resonance.
Yang Bai, Bogdan A. Dobrescu
doaj +1 more source
Fermion mass splitting in the technicolor coupled scenario
European Physical Journal C: Particles and Fields, 2020 We discuss fermion mass generation in unified models where QCD and technicolor (or any two strongly interacting theories) have their Schwinger–Dyson equations coupled.
A. Doff, A. A. Natale
doaj +1 more source
Gravitation waves from QCD and electroweak phase transitions
Journal of High Energy Physics, 2018 We investigate the gravitation waves produced from QCD and electroweak phase transitions in the early universe by using a 5-dimension holographic QCD model and a holographic technicolor model.
Yidian Chen, Mei Huang, Qi-Shu Yan
doaj +1 more source