Results 21 to 30 of about 792 (115)
The present and future of four top operators
Journal of High Energy Physics, 2021 We study the phenomenology of a strongly-interacting top quark at future hadron and lepton colliders, showing that the characteristic four-top contact operators give rise to the most significant effects.
Giovanni Banelli +4 more
doaj +1 more source
Composite scalars at CERN LEP: Constraining technicolor theories [PDF]
, 2000 CERN LEP I and LEP II data can be used to constrain technicolor models with light, neutral pseudo-- Nambu-Goldstone bosons ${P}^{a}.$ We use published limits on branching ratios and cross sections for final states with photons, large missing energy, jet ...
K. Lynch +4 more
semanticscholar +1 more source
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
Fundamental composite electroweak dynamics: Status at the LHC [PDF]
, 2015 We determine the current status of the fundamental composite electroweak dy- namics paradigm after the discovery of the Higgs boson at the Large Hadron Collider experi- ments.
A. Arbey +5 more
semanticscholar +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
Chiral-symmetric technicolor with standard model Higgs boson [PDF]
, 2013 Most of the traditional technicolor-based models are known to be in a strong tension with the electroweak precision tests. We show that this serious issue is naturally cured in strongly coupled sectors with chiral-symmetric vectorlike gauge interactions ...
R. Pasechnik +3 more
semanticscholar +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
Partially composite Goldstone Higgs boson [PDF]
, 2017 We consider a model of dynamical electroweak symmetry breaking with a partially composite Goldstone Higgs. The model is based on a strongly-interacting fermionic sector coupled to a fundamental scalar sector via Yukawa interactions.
T. Alanne, D. B. Franzosi, M. Frandsen
semanticscholar +1 more source