Results 21 to 30 of about 210,813 (335)

Grand unified theory with a stable proton [PDF]

open access: yesInternational Journal of Modern Physics A, 2018
We demonstrate that a phenomenologically viable four-dimensional grand unified theory with no proton decay can be constructed. This is done in the framework of the minimal nonsupersymmetric SU(5) GUT by introducing new representations and separating the physical quark and lepton fields into different multiplets.
Fornal, Bartosz, Grinstein, Benjamín
openaire   +4 more sources

Gauge Coupling Unification from Unified Theories in Higher Dimensions [PDF]

open access: yes, 2001
Higher dimensional grand unified theories, with gauge symmetry breaking by orbifold compactification, possess SU(5) breaking at fixed points, and do not automatically lead to tree-level gauge coupling unification.
A. Hebecker   +32 more
core   +2 more sources

Phases of confining SU(5) chiral gauge theory with three generations

open access: yesJournal of High Energy Physics, 2022
We explore the possible low energy phases of the confining non-supersymmetric SU(5) chiral gauge theory with three generations of fermions in the (10+ 5 ¯ $$ \overline{5} $$ ) representations.
Yang Bai, Daniel Stolarski
doaj   +1 more source

Neutrino masses, anomalous U(1) gauge symmetry and doublet-triplet splitting [PDF]

open access: yes, 2001
We propose an attractive scenario of grand unified theories in which doublet-triplet splitting is beautifully realized in SO(10) unification using Dimopoulos-Wilczek mechanism.
Maekawa, Nobuhiro
core   +2 more sources

Dark monopoles in Grand Unified Theories [PDF]

open access: yesJournal of High Energy Physics, 2019
AbstractWe consider a Yang-Mills-Higgs theory with gauge groupG= SU(n) broken toGv= [SU(p) × SU(n−p) × U(1)]/Zby a Higgs field in the adjoint representation. We obtain monopole solutions whose magnetic field is not in the Cartan Subalgebra. Since their magnetic field vanishes in the direction of the generator of the U(1)emelectromagnetic group, we call
Maria de Lourdes Z. P. Deglmann   +1 more
openaire   +4 more sources

Axion couplings in grand unified theories

open access: yesJournal of High Energy Physics, 2022
Abstract We show that the couplings of axions to gauge bosons are highly restricted in Grand Unified Theories where the standard model is embedded in a simple 4D gauge group. The topological nature of these couplings allows them to be matched from the UV to the IR, and the ratio of the anomaly with photons and gluons for any axion ...
Prateek Agrawal, Michael Nee, Mario Reig
openaire   +4 more sources

Gravitational Breaking of the Grand Unified Theory Group and the Grand Unified Theory–Planck Hierarchy [PDF]

open access: yesPhysical Review Letters, 1996
It is shown that nonrenormalizable gravitational interactions in the Higgs sector of supersymmetric grand unified theories (GUTs) can produce the breaking of the unifying gauge group {ital G} at the GUT scale {ital M}{sub GUT}{approximately}10{sup 16} GeV.
, Urano, , Ring, , Arnowitt
openaire   +2 more sources

Convergence and the Grand Unified Theory

open access: hybridJournal of Physical Mathematics, 2017
This paper examines the relationship between the four fundamentals forces and shows how, using fluid mechanics, electromagnetism, quantum mechanics and gravity, these forces converge on one solution just as Mathematics does. An equation for the universal processes is provided.
P Cusack
openalex   +2 more sources

Heterotic E6 GUTs and Partition Functions

open access: yes, 2011
The E6 grand unified theory is an attractive candidate intermediate theory between the standard model and string theory. However, only one E6 grand unified model with three generations and at least one adjoint Higgs field has been derived from string ...
Ito, Motoharu   +7 more
core   +1 more source

Resurrection of Grand Unified Theory Baryogenesis [PDF]

open access: yesPhysical Review Letters, 2002
A `new' scenario is proposed for baryogenesis. We show that delayed decay of coloured Higgs particles in grand unified theories may generate excess baryon number of the empirically desired amount, if the mass of the heaviest neutrino is in the range $0.02 {\rm eV}
Fukugita, M., Yanagida, T.
openaire   +3 more sources

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