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The zero mode of an extra-dimensional component of gauge potentials serves as a 4D Higgs field in the gauge-Higgs unification. We examine QED on $M^4 \times S^1$ and determine the mass and potential of a 4D Higgs field (the $A_5$ component)…

High Energy Physics - Phenomenology · Physics 2008-11-26 Y. Hosotani , N. Maru , K. Takenaga , Toshifumi Yamashita

At LEP2 many Standard Model predictions are tested up to centre-of-mass energies of 209 GeV. Fermion pair production cross sections and asymmetries agree well with the theoretical expectation over the entire energy range. The measurements…

High Energy Physics - Experiment · Physics 2007-05-23 Stephan Wynhoff

Depending on the Higgs-boson and top-quark masses, $M_H$ and $M_t$, the effective potential of the Standard Model can develop a non-standard minimum for values of the field much larger than the weak scale. In those cases the standard…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Quiros

The naturalness problem might be studied on the complex two dimensional plane with the technique of dimensional regularization(DREG). The Renormalization group equation(RGE) of the Higgs mass on the plane suggests the Higgs mass approaches…

High Energy Physics - Phenomenology · Physics 2015-06-16 Ligong Bian

We present a novel extension of the Standard Model which fulfills the multiple-point principle without contradicting the Higgs particle mass measurement. In the model, the scalar potential has two minima where the scalar field has vacuum…

High Energy Physics - Phenomenology · Physics 2017-06-21 Naoyuki Haba , Toshifumi Yamada

We perform a manifestly gauge-independent analysis of the vacuum stability in the Standard Model (SM) including two-loop matching, three-loop renormalization group evolution, and pure QCD corrections through four loops. All these…

High Energy Physics - Phenomenology · Physics 2015-11-18 A. V. Bednyakov , B. A. Kniehl , A. F. Pikelner , O. L. Veretin

The `triviality' of $\Phi^4_4$ has been traditionally interpreted within perturbation theory where the prediction for the Higgs boson mass depends on the magnitude of the ultraviolet cutoff $\Lambda$. This approach crucially assumes that…

High Energy Physics - Lattice · Physics 2009-11-10 P. Cea , M. Consoli , L. Cosmai

In this paper we investigate the vacuum stability of the non-minimally coupled Standard-Model Higgs during a phase of kinetic domination following the end of inflation. The non-minimal coupling to curvature stabilises the Higgs fluctuations…

High Energy Physics - Phenomenology · Physics 2024-05-01 Giorgio Laverda , Javier Rubio

We present a new global fit to precision electroweak data, including new low- and high-energy data and analyzing the radiative corrections arising from the minimal symmetry breaking sectors of the Standard Model (SM) and its supersymmetric…

High Energy Physics - Phenomenology · Physics 2009-09-11 John Ellis , G. L Fogli , E. Lisi

The `triviality' of $\Phi^4_4$ has been traditionally interpreted within perturbation theory where the prediction for the Higgs boson mass depends on the magnitude of the ultraviolet cutoff $\Lambda$. This approach crucially assumes that…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Cea , M. Consoli , L. Cosmai

We re-analyse the perturbative radiative corrections to the Higgs mass within the Standard Model in the light of the Taylor-Lagrange renormalization scheme. This scheme naturally leads to completely finite corrections, depending on an…

High Energy Physics - Theory · Physics 2010-11-09 P. Grangé , J. -F. Mathiot , B. Mutet , E. Werner

We study the phenomenology of Higgs bosons close to 126 GeV within the scale invariant unconstrained next-to-minimal supersymmetric Standard Model (NMSSM), focusing on the regions of parameter space favoured by low fine-tuning…

High Energy Physics - Phenomenology · Physics 2015-06-12 Stephen F. King , Margarete Muhlleitner , Roman Nevzorov , Kathrin Walz

We consider a version of special relativity assuming that the metric in inertial frames is conformally pseudoeuclidean and depends on some scalar field with zero vacuum average. Applying this modified special relativity to the theory of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Vladimir I. Kruglov

Though the mass of Higgs particle is the parameter determined by the experiment in the standard model (SM), SUSY models have rather predictive power for the lightest Higgs mass, and its upper bound in some SUSY models are close to the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Naoyuki Haba

In the framework of the two-loop renormalization group, the global profile of the Standard Model (SM) in its full parameter space is investigated up to the scale of the gauge singularity. The critical Higgs masses bordering the strong…

High Energy Physics - Phenomenology · Physics 2025-03-10 Yu. F. Pirogov , O. V. Zenin

Phase transitions induced by high temperatures and strong magnetic fields are investigated in the Standard model. The consistent effective potential including the one-loop and ring diagram contributions is calculated and investigated for…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. Skalozub , M. Bordag

This is an addendum to the paper of the above title published in Physics Letters B317, 159 (1993). In that paper, I found the lower bound to the Higgs mass as a function of the top quark mass one obtains by requiring that the standard model…

High Energy Physics - Phenomenology · Physics 2007-05-23 Marc Sher

The question of stability of the Higgs potential in the Standard Model is revisited employing advanced theoretical precision and recent experimental results. We show that the top mass and strong coupling constants are key observables in…

High Energy Physics - Phenomenology · Physics 2026-03-06 Tom Steudtner

We determine the next-to-leading order renormalization group equations for the Two-Higgs-Doublet model with a softly broken $Z_2$ symmetry and CP conservation in the scalar potential. We use them to identify the parameter regions which are…

High Energy Physics - Phenomenology · Physics 2016-01-20 Debtosh Chowdhury , Otto Eberhardt

The Standard Model can be defined quantitatively by running parameters in a mass-independent renormalization scheme at a fixed reference scale. We provide a set of simple interpolation formulas that give the fundamental Lagrangian…

High Energy Physics - Phenomenology · Physics 2023-02-08 Zamiul Alam , Stephen P. Martin