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A Standard-Model-like Higgs boson should be light in order to comply with electroweak precision measurements from LEP. We consider five-dimensional (5D) warped models -- with a deformation of the metric in the IR region -- as UV completions…

High Energy Physics - Phenomenology · Physics 2011-09-15 Joan A. Cabrer , Gero von Gersdorff , Mariano Quiros

We propose a simple superpotential for the Higgs doublets, where the electroweak symmetry is broken at the supersymmetric level. We show that, for a class of supersymmetry breaking scenarios, the electroweak scale can be stable even though…

High Energy Physics - Phenomenology · Physics 2008-12-19 Naoyuki Haba , Nobuchika Okada

The bound-state S-Matrix of QUD (SU(5) gauge theory with massless left-handed 5 + 15 + 40 + 45* fermions) might underly the success of the Standard Model. The dynamical role of the QUD top quark leads to two Higgs-like scalar resonances,…

High Energy Physics - Phenomenology · Physics 2013-01-24 Alan R. White

We construct two kinds of model exhibiting Higgs mechanism for gravitons in potentials of scalar fields. One class of the model is based on a potential which is a generic function of the induced internal metric $H^{AB}$, and the other…

High Energy Physics - Theory · Physics 2014-11-20 Ichiro Oda

We study a five dimensional SU(3) nonsupersymmetric gauge theory compactified on $M^4\times S^1/Z_2$ and discuss the gauge hierarchy in the scenario of the gauge-Higgs unification. Making use of calculability of the Higgs potential and a…

High Energy Physics - Theory · Physics 2008-11-26 Makoto Sakamoto , Kazunori Takenaga

We report on the progress in the study of a five-dimensional SU(2) Gauge-Higgs Unification model. In this non-perturbative study, the Higgs mechanism is triggered by the spontaneous breaking of a global symmetry. In the same region of the…

High Energy Physics - Lattice · Physics 2016-09-27 Maurizio Alberti , Nikos Irges , Francesco Knechtli , Graham Moir

The supersymmetric grand unified theory where the SU(5) gauge symmetry is broken by the Hosotani mechanism predicts the existence of adjoint chiral superfields whose masses are at the supersymmetry breaking scale. The Higgs sector is…

High Energy Physics - Phenomenology · Physics 2015-06-18 Mitsuru Kakizaki , Shinya Kanemura , Hiroyuki Taniguchi , Toshifumi Yamashita

In view of the current status of measured Higgs boson properties, we consider a question whether only the Higgs self-interactions can deviate significantly from the Standard-Model (SM) predictions. This may be possible if the Higgs…

High Energy Physics - Phenomenology · Physics 2016-11-01 Kazuhiro Endo , Yukinari Sumino

We present a comprehensive analysis of the Higgs boson spectra in several versions of the supersymmetric left--right model based on the gauge symmetry $SU(3)_c \times SU(2)_L \times SU(2)_R \times U(1)_{B-L}$. A variety of symmetry breaking…

High Energy Physics - Phenomenology · Physics 2016-03-30 K. S. Babu , Ayon Patra

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 consider Mirror Twin Higgs models in which the breaking of the global symmetry is realized linearly. In this scenario, the radial mode in the Higgs potential is present in the spectrum, and constitutes a second portal between the twin…

High Energy Physics - Phenomenology · Physics 2018-03-28 Zackaria Chacko , Can Kilic , Saereh Najjari , Christopher B. Verhaaren

We study the Higgs potential in No-Scale F-SU(5), a model built on the tripodal foundations of the Flipped SU(5) x U(1)_X Grand Unified Theory, extra F-theory derived TeV scale vector-like particle multiplets, and the high scale boundary…

High Energy Physics - Phenomenology · Physics 2011-09-13 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

We examine the modulus stabilization mechanism of a warped geometry model with nested warping. Such a model with multiple moduli is known to offer a possible resolution of the fermion mass hierarchy problem in the standard model. A six…

High Energy Physics - Theory · Physics 2022-12-14 Arko Bhaumik , Soumitra SenGupta

We show that a possible resolution to the stabilization of an extra spatial dimension (radion) can be obtained solely in the context of gravitational dynamics itself without the necessity of introducing any external stabilizing field. In…

General Relativity and Quantum Cosmology · Physics 2017-08-30 Sumanta Chakraborty , Soumitra SenGupta

We report on a study of the physics potential of linear $e^+e^-$ colliders. Although a linear collider (LC) would support a broad physics program, we focus on the contributions that could help elucidate the origin of electroweak symmetry…

The radiative corrections to the $3\times3$scalar and the $2\times2$ pseudoscalar neutral Higgs boson massmatrices are calculated in the supersymmetric extension of the standard model including a gauge singlet superfield in the effective…

High Energy Physics - Phenomenology · Physics 2009-10-22 Ulrich Ellwanger

We present the construction of constraint HMC algorithms for gauge-Higgs models in order to measure the effective Higgs potential. In particular we focus on SU(2) Gauge-Higgs Unification models in five dimensions. Previous simulations have…

High Energy Physics - Lattice · Physics 2018-12-06 Roman Höllwieser , Francesco Knechtli

We examine an extension of the SM Higgs sector by a Higgs triplet taking into consideration the Higgs-like particle discovery at the LHC with mass around 125 GeV. We evaluate the bounds on the scalar potential through the unitarity of the…

High Energy Physics - Phenomenology · Physics 2018-05-22 Najimuddin Khan

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

We outline a consistent Randall-Sundrum (RS) framework in which a fundamental 5-dimensional Higgs doublet induces electroweak symmetry breaking (EWSB). In this framework of a warped Universal Extra Dimension, the lightest Kaluza-Klein (KK)…

High Energy Physics - Phenomenology · Physics 2009-11-11 Hooman Davoudiasl , Ben Lillie , Thomas G. Rizzo