Results 81 to 90 of about 294 (136)

Hypercharged naturalness

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, Stefan Stelzl, Riccardo Torre, Andreas Weiler   +3 more
doaj   +1 more source

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
doaj   +1 more source

Composite (pseudo) scalar contributions to muon g−2 [PDF]

, 2016
We have calculated the composite (pseudo) scalar contributions to the anomalous magnetic moment of muons in models of walking technicolor. By the axial or scale anomaly the light scalars such as techni-dilaton, techni-pions or techni-eta have anomalous ...
Kim, Du Hwan, Du Hwan Kim, Hong, Deog Ki, Deog Ki Hong   +3 more
core   +1 more source

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, Federica Fabbri, Steffen Schumann   +2 more
doaj   +1 more source

Twin Higgs with exact Z 2

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, Cong-Sen Guan, Teng Ma, Jing Shu   +3 more
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 boson. The model is based on a strongly interacting fermionic sector coupled to a fundamental scalar sector via Yukawa interactions.
Franzosi, D., Alanne, T., Frandsen, Mads T.; id_orcid, Frandsen, M., Frandsen, Mads T., Franzosi, Diogo Buarque, Mads T. Frandsen, Alanne, Tommi, Tommi Alanne, Diogo Buarque Franzosi   +9 more
core   +1 more source

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, Felipe Ferreira De Freitas, Li Huang, Teng Ma, Maxim Perelstein, Jing Shu   +5 more
doaj   +1 more source

Fundamental Composite Dynamics: A Review

, 2020
International audienceWe introduce fundamental gauge theories that can be employed to construct informed composite bright and dark extensions of the Standard Model, within and beyond the standard paradigms.
Pica, Claudio; id_orcid, Sannino, Francesco; id_orcid, Sannino, Francesco, Cacciapaglia, Giacomo, Pica, Claudio   +4 more
core   +1 more source

Mixed dark matter from technicolor [PDF]

, 2010
We study natural composite cold dark matter candidates which are pseudo-Nambu-Goldstone bosons (pNGB) in models of dynamical electroweak symmetry breaking.
Belyaev, A, Sannino, Francesco; id_orcid, Sarkar, Subir, Sannino, Francesco, Subir Sarkar, Mads T. Frandsen, Frandsen, MT, Frandsen, Mads, Frandsen, Mads T, Frandsen MT, Sannino, F, Sarkar, S, Belyaev, Alexander, Frandsen, Mads T., Alexander Belyaev, Sarkar S, Francesco Sannino, Sannino F, Belyaev A, T. Frandsen, Mads; id_orcid   +19 more
core   +1 more source

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, Jan Hajer, Tao Liu, Ian Low, Hao Zhang   +4 more
doaj   +1 more source