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Particle Physics on Noncommutative Spaces
Particle Physics on Noncommutative Spaces

... imply the existence of a minimal length in Nature: Gauge theories with a fundamental length are thus very interesting. • A class of models with a fundamental length are gauge theories on noncommutative spaces (length ~ ). • Noncommutative coordinates appear in nature: e.g. hydrogen atom in a stron ...
The cosmic connection
The cosmic connection

... We don’t know, but the answer almost certainly lies in particle physics. In the 1980’s particle theorists developed what is still a leading candidate for a theory beyond the Standard Model. Supersymmetry predicts that every particle we know has a supersymmetric partner which is much more massive and ...
The list of publications
The list of publications

... One of the most delicate experiments, which will be able to answer to the question on the Dirac or Majorana origin of neutrino are neutrinoless double β-processes. If we can register the neutrinoless double в-process, it means that neutrino is a Majorana particle, and that the total lepton number is ...
pbarp - CERN Indico
pbarp - CERN Indico

Outline Solutions to Particle Physics Problem Sheet 1
Outline Solutions to Particle Physics Problem Sheet 1

The validity of the scientific method in modern physics
The validity of the scientific method in modern physics

the standard model - Public < RHUL Physics Department TWiki
the standard model - Public < RHUL Physics Department TWiki

Gas Laws and Kinetic Molecular Theory
Gas Laws and Kinetic Molecular Theory

... best adapted to their environment survive and pass on hereditable traits. Explains the phenomenon of evolution, the fossil record, and the diversity of species on Earth. Theory of plate tectonics: Earth’s crust is divided into plates that move. Explains why earthquakes and volcanoes occur in certain ...
The Gluex Experiment - University of Connecticut
The Gluex Experiment - University of Connecticut

... Of the many components that went into constructing the GlueX setup, we worked on the photon source, specifically, the mount for the crystal ...
here - islam-science.net
here - islam-science.net

... The Muon System detects muons, which is a one of CMS's key tasks. Muons are charged particles that are just like electrons and positrons but 200 times heavier. The detection of such particles is important because scientists expect muons to be produced in the decay of potential new particles like th ...
Lecture 5: Physics Beyond the Standard Model and Supersymmetry
Lecture 5: Physics Beyond the Standard Model and Supersymmetry

arXiv:1412.6954v1 [hep-ph] 22 Dec 2014
arXiv:1412.6954v1 [hep-ph] 22 Dec 2014

What is String Theory?
What is String Theory?

... are typically like what is considered in particle QFT! They naturally exhibit: ...
The characterization of ground states
The characterization of ground states

An Introduction to High Energy Physics
An Introduction to High Energy Physics

Group-Symmetries and Quarks - USC Department of Physics
Group-Symmetries and Quarks - USC Department of Physics

... • The excited states of mesons correspond to the observed meson states • Parity of Meson, P = -(-1)L • The particle-antiparticle conjugation operator C is given by, C = -(-1)S+1(-1)L = (-1)L+S • In each nonet of the meson, there are two isospin doublets ...
Student Colloquium at WSU (Fall 2006) (ppt-format)
Student Colloquium at WSU (Fall 2006) (ppt-format)

QCD - Rahul I. Patel
QCD - Rahul I. Patel

thesis presentation
thesis presentation

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States of Matter
States of Matter

... States of Matter also known as ...
Particle Physics in the LHC Era - SUrface
Particle Physics in the LHC Era - SUrface

Intro to the Atom PPT
Intro to the Atom PPT

... • Was not the first to propose an atomic theory. He was the first to write about it, however. • Formally developed the idea that matter could not be divided infinitely and that there must be some smallest particle which he called “atomos” which means indivisible. • All matter is composed of atoms, w ...
Fermionic Vortices Find their Dual - Physics (APS)
Fermionic Vortices Find their Dual - Physics (APS)

... that can be described in terms of another set of weakly coupled particles. When such a dual representation is found, it gives a solution to the strong coupling problem. A further reason that theoretical physicists get excited about dualities is that they undermine the very notion of an “elementary p ...
The Lee-Wick Fields out of Gravity
The Lee-Wick Fields out of Gravity

Ultracold atoms as quantum simulators for new materials – synthetic
Ultracold atoms as quantum simulators for new materials – synthetic

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Grand Unified Theory

A Grand Unified Theory (GUT) is a model in particle physics in which at high energy, the three gauge interactions of the Standard Model which define the electromagnetic, weak, and strong interactions or forces, are merged into one single force. This unified interaction is characterized by one larger gauge symmetry and thus several force carriers, but one unified coupling constant. If Grand Unification is realized in nature, there is the possibility of a grand unification epoch in the early universe in which the fundamental forces are not yet distinct.Models that do not unify all interactions using one simple Lie group as the gauge symmetry, but do so using semisimple groups, can exhibit similar properties and are sometimes referred to as Grand Unified Theories as well.Unifying gravity with the other three interactions would provide a theory of everything (TOE), rather than a GUT. Nevertheless, GUTs are often seen as an intermediate step towards a TOE.The novel particles predicted by GUT models are expected to have energies around the GUT scale—just a few orders of magnitude below the Planck scale—and so will be well beyond the reach of any foreseen particle collider experiments. Therefore, the particles predicted by GUT models will be unable to be observed directly and instead the effects of grand unification might be detected through indirect observations such as proton decay, electric dipole moments of elementary particles, or the properties of neutrinos. Some grand unified theories predict the existence of magnetic monopoles.As of 2012, all GUT models which aim to be completely realistic are quite complicated, even compared to the Standard Model, because they need to introduce additional fields and interactions, or even additional dimensions of space. The main reason for this complexity lies in the difficulty of reproducing the observed fermion masses and mixing angles. Due to this difficulty, and due to the lack of any observed effect of grand unification so far, there is no generally accepted GUT model.
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