0000000000482208

AUTHOR

Matti Antola

showing 4 related works from this author

Supersymmetric Extension of Technicolor & Fermion Mass Generation

2012

We provide a complete extension of Minimal Walking Technicolor able to account for the standard model fermion masses. The model is supersymmetric at energies greater or equal to the technicolor compositeness scale. We integrate out, at the supersymmetry breaking scale, the elementary Higgses. We use the resulting four-fermion operators to derive the low energy effective theory. We then determine the associated tree-level vacuum and low energy spectrum properties. Furthermore we investigate the phenomenological viability of the model by comparing its predictions with electroweak precision tests and experimental bounds on the mass spectrum. We then turn to the composite Higgs phenomenology at…

PhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderSupersymmetry breaking scaleta114010308 nuclear & particles physicsElectroweak interactionMass generationHigh Energy Physics - Lattice (hep-lat)High Energy Physics::PhenomenologyFOS: Physical scienceshep-latTechnicolorhep-ph7. Clean energy01 natural sciencesHigh Energy Physics - PhenomenologyHigh Energy Physics - LatticeHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesEffective field theoryHiggs boson010306 general physicsMinimal Supersymmetric Standard Model
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Ultraviolet complete technicolor and Higgs physics at LHC

2015

We construct a Technicolor model which provides masses for the electroweak gauge bosons and for all the Standard Model matter fields. Starting from an ultraviolet complete supersymmetric technicolor, we propose a scenario where all elementary scalars, gauginos, and higgsinos are decoupled at an energy scale substantially higher than the electroweak scale, therefore avoiding the little hierarchy problem of the minimal supersymmetric standard model. The resulting low energy theory has an SU(3) global symmetry whose breaking to SO(3) leads to electroweak symmetry breaking. We study in detail the phenomenology of this theory and demonstrate that it reproduces the present LHC data at the same le…

PhysicsParticle physicsNuclear and High Energy PhysicsLarge Hadron Colliderta114Electroweak interactionHigh Energy Physics::PhenomenologyFOS: Physical sciencesTechnicolorSupersymmetrysupersymmetric modelsHigh Energy Physics::TheoryHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Higgs bosonlcsh:QC770-798lcsh:Nuclear and particle physics. Atomic energy. RadioactivityLittle hierarchy problemHigh Energy Physics::ExperimentSymmetry breakingLHCMinimal Supersymmetric Standard Model
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Unnatural origin of fermion masses for technicolor

2009

We explore the scenario in which the breaking of the electroweak symmetry is due to the simultaneous presence and interplay of a dynamical sector and an unnatural elementary Higgs. We introduce a low energy effective Lagrangian and constrain the various couplings via direct search limits and electroweak and flavor precision tests. We find that the model we study is a viable model of dynamical breaking of the electroweak symmetry.

PhysicsNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::PhenomenologyElectroweak interactionFOS: Physical scienceshep-phTechnicolorFermionSymmetry (physics)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Low energyEffective lagrangianHiggs bosonHigh Energy Physics::ExperimentDirect searchJournal of High Energy Physics
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extended MSSM

2012

We investigate the perturbative regime of the Minimal Supersymmetric Con- formal Technicolor and show that it allows for a stable vacuum correctly breaking the electroweak symmetry. We nd that the particle spectrum is richer than the MSSM one since it features several new particles stemming out from the new N = 4 sector of the theory. The parameter space of the new theory is reduced imposing naturalness of the cou- plings and soft supersymmetry breaking masses, perturbativity of the model at the EW scale as well as phenomenological constraints. By studying the RGEs at two loops we nd that the Yukawa couplings of the heavy fermionic states

PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyElectroweak interactionYukawa potentialConformal mapTechnicolorParameter space01 natural sciencesSupersymmetry breakingSymmetry (physics)Naturalness0103 physical sciences010306 general physicsNuclear Physics B
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