Results 21 to 30 of about 118,008 (216)
Light-quark Yukawa couplings from off-shell Higgs production
Journal of High Energy Physics, 2023 Yukawa couplings of the first quark generation are notoriously difficult to constrain due to their small values within the Standard Model. Here we propose Higgs off-shell production, with the Higgs boson decaying to four leptons, as a probe of the up ...
Elisa Balzani +2 more
doaj +1 more source
Complementarity of LHC and EDMs for Exploring Higgs CP Violation [PDF]
, 2015 We analyze the constraints on a CP-violating, flavor conserving, two Higgs doublet model from the measurements of Higgs properties and from the search for heavy Higgs bosons at LHC, and show that the stronger limits typically come from the heavy Higgs ...
Chen, Chien-Yi, Dawson, S., Zhang, Yue
core +3 more sources
On the Impact of the LHC Run 2 Data on General Composite Higgs Scenarios
Advances in High Energy Physics, 2022 We study the impact of Run 2 LHC data on general composite Higgs scenarios, where nonlinear effects, mixing with additional scalars, and new fermionic degrees of freedom could simultaneously contribute to the modification of Higgs properties.
Charanjit K. Khosa, Veronica Sanz
doaj +1 more source
Higgs Boson Theory and Phenomenology [PDF]
, 2002 Precision electroweak data presently favors a weakly-coupled Higgs sector as the mechanism responsible for electroweak symmetry breaking. Low-energy supersymmetry provides a natural framework for weakly-coupled elementary scalars.
't Hooft +439 more
core +2 more sources
Two-loop infrared singularities in the production of a Higgs boson associated with a top-quark pair
Journal of High Energy Physics, 2022 The associated production of a Higgs boson and a top-quark pair is important for probing the Yukawa coupling of the top quark, and calls for better theoretical modeling.
Jiaqi Chen +4 more
doaj +1 more source
Analytic approximations of 2 → 2 processes with massive internal particles
Journal of High Energy Physics, 2023 We consider two-loop corrections to 2 → 2 scattering processes with massive particles in the final state and massive particles in the loop. We discuss the combination of analytic expansions in the high-energy limit and for small Mandelstam variable t ...
Joshua Davies +3 more
doaj +1 more source
Unparticles-Higgs Interplay [PDF]
, 2007 We show that scalar unparticles coupled to the Standard Model Higgs at the renormalizable level can have a dramatic impact in the breaking of the electroweak symmetry already at tree level.
Antonio Delgado +33 more
core +2 more sources
Combined Analysis of CP Properties of Higgs Boson in Effective Higgs Lagrangian [PDF]
Communications in Theoretical Physics, 2016 Summary: CP violation effects of the Higgs stem from not only the CP mixing state but also the CP-violation couplings to electroweak bosons. The two CPV sources are combinedly studied based on an effective Higgs Lagrangian. The constraints from unitarity limits for \(WW\) and \(ZZ\) scatterings are investigated.
Li, Rong, Zhang, Ying
openaire +2 more sources
Exploring Higgs-photon production at the LHC
Journal of High Energy Physics, 2023 We have investigated the signal for physics beyond the Standard Model via Higgs plus photon final state, hitherto unobserved at the LHC, in the framework of Standard Model Effective Field Theory.
Tisa Biswas, Anindya Datta
doaj +1 more source
Electroweak Baryogenesis and Higgs Properties [PDF]
, 2012 We explore the connection between the strength of the electroweak phase transition and the properties of the Higgs boson. Our interest is in regions of parameter space that can realize electroweak baryogenesis. We do so in a simplified framework in which a single Higgs field couples to new scalar fields charged under SU(3){sub c} by way of the Higgs ...
Cohen, Timothy +2 more
openaire +2 more sources