Results 81 to 90 of about 792 (115)
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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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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Journal of High Energy Physics, 2020 We present a novel mechanism for realistic electroweak symmetry breaking in Twin Higgs/neutral naturalness models where the Z 2 exchange symmetry can remain exactly unbroken.
Csaba Csáki +3 more
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Testing naturalness at 100 TeV
Journal of High Energy Physics, 2017 Solutions to the electroweak hierarchy problem typically introduce a new symmetry to stabilize the quadratic ultraviolet sensitivity in the self-energy of the Higgs boson.
Chuan-Ren Chen +4 more
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Naturalness sum rules and their collider tests
Journal of High Energy Physics, 2019 We present the most general sum rules reflecting the cancellation of ultraviolet divergences in the Higgs potential, which provide necessary conditions for any weakly-coupled extension of the Standard Model to be natural. There is a separate sum rule for
Csaba Csáki +5 more
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Experimental verification of the standard model of particle physics. [PDF]
Proc Jpn Acad Ser B Phys Biol Sci, 2021 Kobayashi T.
europepmc +1 more source