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Related papers: Embeddings of the Standard Model in $E_8$

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I show how the symmetry-breaking of a recently proposed embedding of the standard model of particle physics in $E_8$ can be explained in terms of the representation theory of the binary tetrahedral group. This finite group provides a link…

General Physics · Physics 2023-01-30 Robert A. Wilson

There are many ways to embed the Lie groups of the Standard Model of Particle Physics in a Lie group of type $E_8$, but so far there is no convincing demonstration that the finite symmetries (and asymmetries) of weak hypercharge, three…

General Physics · Physics 2024-09-04 Robert A. Wilson

We construct an explicit algebraic realisation of three fermion generations within a single Clifford algebra, transforming under the full Standard Model $SU(3)_C\times SU(2)_L\times U(1)_Y$ gauge group, in which an intrinsic $S_3$ family…

General Physics · Physics 2026-04-14 Niels Gresnigt

The three-dimensional complexified exteriour bundle $C \otimes \Lambda(R^3)$ is proposed as a geometric interpretation of electroweak doublets of Dirac fermions. The Dirac equation on this bundle allows a staggered discretization on a…

General Physics · Physics 2012-11-09 I. Schmelzer

Numerical evidence for a new dynamical mechanism of elementary particle mass generation has been found by lattice simulation in a simple, yet highly non-trivial SU(3) gauge model where a SU(2) doublet of strongly interacting fermions is…

High Energy Physics - Lattice · Physics 2018-11-27 Roberto Frezzotti , Giancarlo Rossi

An extension of the Standard Model to the local gauge group $SU(3)_c\otimes SU(3)_L\otimes U(1)_X$ which is a subgroup of the electroweak-strong unification group $E_6$ is analyzed. The mass scales, the gauge boson masses, and the masses…

High Energy Physics - Phenomenology · Physics 2011-03-23 Luis A. Sanchez , William A. Ponce , R. Martinez

We propose an $E_8 \otimes E_8$ unification of the standard model with pre-gravitation, on an exceptional Lie algebra-valued space. Each of the $E_8$ has in its branching an $SU(3)$ for space-time and an $SU(3)$ for three fermion…

High Energy Physics - Phenomenology · Physics 2024-07-09 Priyank Kaushik , Vatsalya Vaibhav , Tejinder P. Singh

We interpret the elements of the exceptional Lie algebra $\mathfrak{e}_{8(-24)}$ as objects in the Standard Model, including lepton and quark spinors with the usual properties, the Standard Model Lie algebra…

High Energy Physics - Phenomenology · Physics 2022-08-26 Corinne A. Manogue , Tevian Dray , Robert A. Wilson

We study dynamical electroweak symmetry breaking in the Randall-Sundrum scenario. We show that one extra dimension is enough to give the correct pattern of electroweak symmetry breaking in a simple model with gauge bosons and the…

High Energy Physics - Phenomenology · Physics 2009-11-07 N. Rius , V. Sanz

Following up on our earlier work where we showed how to amend a scheme originally proposed by M. Gell-Mann to identify the 48 spin 1/2 fermions of N=8 supergravity that remain after complete breaking of N=8 supersymmetry with the 3x16…

High Energy Physics - Theory · Physics 2018-09-12 Krzysztof A. Meissner , Hermann Nicolai

In recent work arXiv:1412.1715 it was shown how to modify Gell-Mann's proposal for identifying the 48 quarks and leptons of the Standard Model with the 48 spin-1/2 fermions of maximal SO(8) gauged supergravity that remain after the removal…

High Energy Physics - Theory · Physics 2015-07-02 Axel Kleinschmidt , Hermann Nicolai

The algebraic elements of gravitational and Standard Model gauge fields acting on a generation of fermions may be represented using real matrices. These elements match a subalgebra of spin(11,3) acting on a Majorana-Weyl spinor, consistent…

General Relativity and Quantum Cosmology · Physics 2010-06-28 A. Garrett Lisi

Building on earlier work, we propose an elementary Lagrangian for the unification of the standard model with pre-gravitation, assumed to have an unbroken $E_8 \times E_8$ symmetry. The Lagrangian is patterned after the kinetic energy of a…

High Energy Physics - Phenomenology · Physics 2022-08-24 Sherry Raj , Tejinder P. Singh

We propose an extension of the Standard Model (SM) based on the $SU(3)_C\otimes SU(3)_L\otimes U(1)_X$ (3-3-1) gauge symmetry and scale invariance. Maintaining the main features of the so-called 3-3-1 models, such as the cancellation of…

High Energy Physics - Phenomenology · Physics 2020-07-29 Alex G. Dias , Julio Leite , B. L. Sánchez-Vega , William C. Vieira

I propose a discrete model for the Gell-Mann matrices, which allows them to participate in discrete symmetries of three generations of four types of elementary fermions, in addition to their usual role in describing a continuous group…

Group Theory · Mathematics 2024-02-20 Robert A. Wilson

We propose to unify the Gravity and Standard Model gauge groups by using algebraic spinors of the standard four-dimensional Clifford algebra, in left-right symmetric fashion. This generates exactly a Standard Model family of fermions, and a…

High Energy Physics - Theory · Physics 2008-06-20 F. Nesti

The Standard Model of particle physics is derived from first principles from the free Dirac Lagrangian in 8-dimensional spacetime. Motivated by second quantization arguments, we embed the 4-dimensional Clifford algebra of the Dirac…

High Energy Physics - Phenomenology · Physics 2026-05-18 Gonçalo M. Quinta

Building on previous work, we extend an algebraic realisation of three fermion generations within the complex Clifford algebra $\mathbb{C}\ell(8)$ by incorporating a $U(1)_{em}$ gauge symmetry. The algebra $\mathbb{C}\ell(8)$ corresponds to…

High Energy Physics - Theory · Physics 2024-11-05 Liam Gourlay , Niels Gresnigt

This paper consists of two parts. In the first part, a concise reformulation is derived for that part of the Glashow-Weinberg-Salam (GWS) electroweak interaction Hamiltonian, which describes interactions between leptons (in the first…

General Physics · Physics 2024-12-31 Wen-Ge Wang

The gauge symmetry of the Standard Model is SU(3)_c x SU(2)_L x U(1)_Y for unknown reasons. One aspect that can be addressed is the low dimensionality of all its subgroups. Why not much larger groups like SU(7), or for that matter, SP(38)…

High Energy Physics - Phenomenology · Physics 2016-12-30 Guillermo Garcia Fernandez , Jesus Guerrero Rojas , Felipe J. Llanes-Estrada
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