Results 61 to 70 of about 164 (103)
A vector leptoquark for the B-physics anomalies from a composite GUT
Journal of High Energy Physics, 2019 A vector leptoquark at the TeV scale, mostly coupled to the fermions of the third generation, is the preferred option to explain the hints of lepton flavor universality violation in the decays of B-mesons.
Leandro Da Rold, Federico Lamagna
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Composite Higgs and leptoquarks from a simple group
Journal of High Energy Physics, 2019 We propose a composite grand unified theory to study the anomalies in the semileptonic B decays. We show a simple group containing the custodial and Standard Model gauge symmetries, that can deliver a set of composite pseudo Nambu-Goldstone bosons: the ...
Leandro Da Rold, Federico Lamagna
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CP-Violation in a composite 2-Higgs doublet model
Journal of High Energy Physics, 2021 We study CP-Violation (CPV) in a Composite 2-Higgs Doublet Model (C2HDM) based on the global symmetry breaking SO(6)/[SO(4) × SO(2)], wherein the strong sector is modeled by a two-site moose structure.
Stefania De Curtis +3 more
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An almost elementary Higgs: theory and practice
Journal of High Energy Physics, 2018 We study models that interpolate between an elementary and a composite Higgs boson. Such models, arising in theories with new vector-like fermions with electroweak quantum numbers and charged under a confining gauge interaction, are entirely compatible ...
Daniele Barducci +3 more
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Real and complex fundamental partial compositeness
Journal of High Energy Physics, 2020 We complete the analysis of the effective field theory at the electroweak scale for minimal models of fundamental partial compositeness. Specifically, we consider fermions in the complex and real representation of the gauge group underlying the composite
Alessandro Agugliaro, Francesco Sannino
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Probing the top-Higgs sector with composite Higgs models at present and future hadron colliders
Journal of High Energy Physics, 2021 We study the production of t t ¯ h $$ t\overline{t}h $$ and t t ¯ hh $$ t\overline{t} hh $$ at hadron colliders, in the minimal Composite Higgs Models, based on the coset SO(5)/SO(4). We explore the fermionic representations 5 and 14.
Carlos Bautista +5 more
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Neutrino masses from low scale partial compositeness
Journal of High Energy Physics, 2021 We consider a class of models in which the neutrinos acquire Majorana masses through mixing with singlet neutrinos that emerge as composite states of a strongly coupled hidden sector.
Zackaria Chacko +3 more
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Journal of High Energy Physics, 2019 We present an exceptional twin-Higgs model with the minimal symmetry structure for an exact implementation of twin parity along with custodial symmetry.
Javi Serra +3 more
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Very light dilaton and naturally light Higgs boson
Journal of High Energy Physics, 2018 We study very light dilaton, arising from a scale-invariant ultraviolet theory of the Higgs sector in the standard model of particle physics. Imposing the scale symmetry below the ultraviolet scale of the Higgs sector, we alleviate the fine-tuning ...
Deog Ki Hong
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Constraining scalar resonances with top-quark pair production at the LHC
Journal of High Energy Physics, 2018 Constraints on models which predict resonant top-quark pair production at the LHC are provided via a reinterpretation of the Standard Model (SM) particle level measurement of the top-anti-top invariant mass distribution, m t t ¯ $$ m\left(t\overline{t ...
Diogo Buarque Franzosi +2 more
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