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Related papers: Solving the Wrong Hierarchy Problem

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It is studied that `no-scale' model makes hierarchy between scalar top mass and Z boson mass naturally. The supersymmetry breaking parameters are constrained by flavor changing neutral currents in minimal supersymmetric standard model. One…

High Energy Physics - Phenomenology · Physics 2016-09-06 Yuichi Chikira , Yukihiro Mimura

We extend the list of theories featuring a rigorous interacting ultraviolet fixed point by constructing the first theory featuring a Higgs-like scalar with gauge, Yukawa and quartic interactions. We show that the theory enters a…

High Energy Physics - Phenomenology · Physics 2017-09-28 Giulio Maria Pelaggi , Francesco Sannino , Alessandro Strumia , Elena Vigiani

We construct a weakly coupled, renormalizable ultraviolet completion of the Littlest Higgs model with T-parity (LHT), based on an SU(5)xSU(2)xU(1) gauge theory with a discrete Z_2 symmetry. Our model reproduces the complete structure of the…

High Energy Physics - Phenomenology · Physics 2009-11-13 Csaba Csaki , Johannes Heinonen , Maxim Perelstein , Christian Spethmann

The discovery of the Higgs particle at around 126 GeV has given us a big hint towards the origin of the Higgs potential. The running quartic self-coupling decreases and crosses zero somewhere in the very high energy scale. It is usually…

High Energy Physics - Phenomenology · Physics 2017-08-23 Satoshi Iso

The present upper bound on $\kappa_e$, the ratio between the electron Yukawa coupling and its Standard Model value, is of ${\cal O}(600)$. We ask what would be the implications in case that $\kappa_e$ is close to this upper bound. The…

High Energy Physics - Phenomenology · Physics 2018-05-09 Avital Dery , Claudia Frugiuele , Yosef Nir

Models of Gauge-Higgs unification in extra dimensions offer a very elegant playground where one can study electroweak symmetry breaking. The nicest feature is that gauge symmetry itself protects the Higgs potential from divergences, thus…

High Energy Physics - Phenomenology · Physics 2009-11-11 Giacomo Cacciapaglia , Csaba Csaki , Seong Chan Park

We consider a conformal model involving two real scalar fields in which the conformal symmetry is broken by a soft mechanism and is not anomalous. One of these scalar fields is representative of the standard model Higgs. The model predicts…

High Energy Physics - Phenomenology · Physics 2015-12-02 Pankaj Jain , Gopal Kashyap , Subhadip Mitra

Compactifying the SM down to 3D or 2D one may obtain AdS vacua depending on the neutrino mass spectrum. It has been recently shown that, by insisting in the absence of these vacua, as suggested by {\it Weak Gravity Conjecture} (WGC)…

High Energy Physics - Theory · Physics 2018-11-27 Eduardo Gonzalo , Luis E. Ibáñez

We describe a natural UV complete theory with a composite little Higgs. Below a TeV we have the minimal Standard Model with a light Higgs, and an extra neutral scalar. At the TeV scale there are additional scalars, gauge bosons, and…

High Energy Physics - Phenomenology · Physics 2009-11-10 Emanuel Katz , Jaeyong Lee , Ann E. Nelson , Devin G. E. Walker

We study the constraints on the doublet left-right symmetric model (DLRSM) arising due to the Higgs data. The $SU(2)_L$ symmetry of this model is broken by three vacuum expectation values, $\kappa_1$, $\kappa_2$, and $v_L$. Most studies of…

High Energy Physics - Phenomenology · Physics 2023-03-27 Siddhartha Karmakar , Jai More , Akhila Kumar Pradhan , S. Uma Sankar

The presence of weak-scale colored top partners is among the simplest solutions to the Higgs hierarchy problem and allows for a natural electroweak scale. We examine the constraints on generic colored top partners coming solely from their…

High Energy Physics - Phenomenology · Physics 2017-10-25 Rouven Essig , Patrick Meade , Harikrishnan Ramani , Yi-Ming Zhong

A beyond the standard model theory that respects parity symmetry at short distances is known to provide a solution to the strong CP problem without the need for an axion, while keeping the CKM phase unconstrained. In this paper we present a…

High Energy Physics - Phenomenology · Physics 2019-06-26 Yukihiro Mimura , Rabindra N. Mohapatra , Matt Severson

We consider two Higgs doublet models with a softly broken U(1) symmetry, for various limiting values of the scalar mixing angles $\alpha$ and $\beta$. These correspond to the Standard Model Higgs particle being the lighter CP-even scalar…

High Energy Physics - Phenomenology · Physics 2016-08-08 Ambalika Biswas , Amitabha Lahiri

We show that the inconsistency between the spectral Standard Model and the experimental value of the Higgs mass is resolved by the presence of a real scalar field strongly coupled to the Higgs field. This scalar field was already present in…

High Energy Physics - Phenomenology · Physics 2012-11-26 Ali H. Chamseddine , Alain Connes

We study the Higgs mass spectrum as predicted by a Maximally Symmetric Two Higgs Doublet Model (MS-2HDM) potential based on the SO(5) group, softly broken by bilinear Higgs mass terms. We show that the lightest Higgs sector resulting from…

High Energy Physics - Phenomenology · Physics 2015-11-03 P. S. Bhupal Dev , Apostolos Pilaftsis

To solve the hierarchy problem of the Higgs mass, it may be suggested that there are no an intermediate scale up to the Planck scale except for the TeV scale. For this motivation, we investigate possibilities of gauge coupling unification…

High Energy Physics - Phenomenology · Physics 2015-04-28 Yuya Yamaguchi

We consider a minimal extension of the standard model where a real, gauge singlet scalar field is added to the standard spectrum. Introducing the Ansatz of universality of scalar couplings, we are led to a scenario which has a set of very…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gautam Bhattacharyya , Gustavo C. Branco , S. Nandi

We discuss possible realizations of the hypothesis that all the fundamental interactions of the elementary particles should be of gauge type, including the Yukawa and Higgs ones. In the minimal SUSY extension of the standard model, where…

High Energy Physics - Phenomenology · Physics 2009-11-10 J. Lorenzo Diaz-Cruz

While little Higgs models provide an interesting way to address the hierarchy problem, concrete models in the literature typically face two major obstacles. First, the mechanism for generating a Higgs quartic coupling often leads to large…

High Energy Physics - Phenomenology · Physics 2014-11-21 Martin Schmaltz , Daniel Stolarski , Jesse Thaler

Our model \cite{ownmMPP}\cite{SIMPP} with complex action in a functional integral formulation with path integrals extending over all times, past and future, is reviewed. Several numerical relations between coupling constants are presented…

High Energy Physics - Phenomenology · Physics 2015-05-27 Holger Bech Nielsen
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