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We investigate the prospects for the discovery of a neutral Higgs boson produced with one bottom quark followed by Higgs decay into a pair of bottom quarks at the CERN Large Hadron Collider (LHC) and the Fermilab Tevatron Collider. We work…

High Energy Physics - Phenomenology · Physics 2009-12-04 Chung Kao , Shankar Sachithanandam , Joshua Sayre , Yili Wang

We discuss a supersymmetric unified model based on a product gauge group SU(5)\times SU(5)\times SU(5), where the gauge symmetry breaking is achieved without the adjoint or higher-dimensional Higgs field, and the doublet-triplet splitting…

High Energy Physics - Phenomenology · Physics 2007-05-23 Takehiko Asaka , Y. Takanishi

It is shown that the effective Standard Model theory with the physical Higgs mass lighter than $\sim 200$ GeV takes the form of an unbroken electroweak theory already at moderately high, $O(1 TeV)$, energy scales. No such transitional scale…

High Energy Physics - Phenomenology · Physics 2007-05-23 Marko B. Popovic

If the minimal supersymmetric standard model is the solution to the hierarchy problem, the scalar top quark (stop) and the Higgsino should weigh around the electroweak scale such as 200 GeV. A low messenger scale, which results in a light…

High Energy Physics - Phenomenology · Physics 2015-03-17 Masaki Asano , Hyung Do Kim , Ryuichiro Kitano , Yasuhiro Shimizu

Objective: To figure out the underlying physics of QFTs by following the Feynman heuristics lore: I think equation guessing might be the best method to proceed to obtain the laws for the part of physics which is presently unknown.…

General Physics · Physics 2017-04-18 Marijan Ribarič , Luka Šušteršič

A new application of quantum field theory is developed that gives a description of the internal dynamics of dressed elementary particles and predicts their masses. The fermionic and bosonic quantum fields are treated as interdependent…

General Physics · Physics 2012-08-28 J. M. Greben

Recently a new mechanism has been proposed to cure the problem of fermion mass hierarchy in the Standard Model (SM) model. In this scenario, all SM charged fermions other than top quark arise from higher dimensional operators involving the…

High Energy Physics - Phenomenology · Physics 2013-05-30 Dilip Kumar Ghosh , R. S. Hundi

So far, the Standard Model of particle physics (SM) describes the phenomenology observed in high energy physics. In the Large Hadron Collider (LHC) is expected to find the Higgs boson, which is an essential part of SM; also expects to see…

General Physics · Physics 2010-05-04 O. E. Casas B , A. M. Raba P. , N. Poveda T

Supersymmetry is an attractive extension of the standard model of particle physics. It associates to every bosonic degree of freedom a fermionic one and vice versa. Supersymmetry unifies the coupling constants of the electromagnetic, weak…

High Energy Physics - Phenomenology · Physics 2010-07-09 Dirk Zerwas

Presented is a quantum gravity theory that is a quantum mechanical generalization of Einstein's vierbein field-based approach, where the classical metric tensor field is promoted to a quantum mechanical metric tensor field operator. The…

General Relativity and Quantum Cosmology · Physics 2019-08-02 Jeffrey Yepez

Based on general considerations, the Standard Model of particle physics with its extensions (SM) can be ruled out as a valid theory of fundamental forces: it requires far too many parameters, which are not determined from first principles.…

High Energy Physics - Phenomenology · Physics 2014-03-17 Hans-Peter Morsch

We estimate the top quark, lightest sparticle (LSP) and scalar higgs masses within a supersymmetric grand unified framework in which $\tan\beta \simeq m_t/m_b$ and the electroweak symmetry is radiatively broken. The requirement that the…

High Energy Physics - Phenomenology · Physics 2011-05-12 B. Ananthanarayan , Q. Shafi

The insular nature of the Standard Model may be explained if the Higgs mass parameter is only sensitive to quantum corrections from physical states. Starting from a scale-free electroweak sector at tree-level, we postulate that quantum…

High Energy Physics - Phenomenology · Physics 2014-08-22 Hooman Davoudiasl , Ian M. Lewis

First observed in 1995, the top quark is one of a pair of third-generation quarks in the Standard Model of particle physics. It has charge +2/3e and a mass of 171.4 GeV, about 40 times heavier than its partner, the bottom quark. The CDF and…

High Energy Physics - Experiment · Physics 2019-08-15 A. P. Heinson

Precision measurements of high energy top quarks at the LHC constitute a powerful probe of new physics. We study the effect of four fermion operators involving two tops and two light quarks on the high energy tail of the $t\bar t$ invariant…

High Energy Physics - Phenomenology · Physics 2019-02-20 Marco Farina , Cristina Mondino , Duccio Pappadopulo , Joshua T. Ruderman

The Standard Model is in good shape, apart possibly from g_\mu - 2 and some niggling doubts about the electroweak data. Something like a Higgs boson is required to provide particle masses, but theorists are actively considering…

High Energy Physics - Phenomenology · Physics 2023-03-30 John Ellis

In this article we propose a new strategy to address the Little Hierarchy problem. We show that the addition of a fourth generation with vector-like quarks to the minimal supersymmetric standard model (MSSM) can raise the predicted value of…

High Energy Physics - Phenomenology · Physics 2014-09-10 C. Faroughy , K. Grizzard

The progress of Particle Physics is closely linked to the progress in the understanding of the fundamental constants, like the finestructure constant, the mass of the electron or nucleon, or the electroweak mixing angle. The relation…

High Energy Physics - Phenomenology · Physics 2015-06-25 H. Fritzsch

The Standard Model plus gravitation is derived from general relativity with three dimensions of time. I claim that when the Lagrangian for general relativity is calculated using three dimensions of time, the unified field theory results. I…

High Energy Physics - Theory · Physics 2014-10-14 Peter Gillan

We consider the scenario, in which the new strong dynamics is responsible for the formation of the $125$ GeV Higgs boson. The Higgs boson appears as composed of all known quarks and leptons of the Standard Model. The description of the…

High Energy Physics - Phenomenology · Physics 2014-04-30 M. A. Zubkov
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