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yale - Particle Theory Group
yale - Particle Theory Group

student worksheet
student worksheet

Gauge Field Theories Second Edition - Assets
Gauge Field Theories Second Edition - Assets

... scheme for fundamental interactions. It is also reached by quantization of fields describing classical forces, such as electromagnetic forces. The basic physical concept which underlies quantum field theory is the equivalence of particles and forces. This logical structure of theories for fundamenta ...
1987 onward
1987 onward

... Elisabetta Pallante (RUG): Effective field theories In modern field theoretical language, a field theory can a priori be thought as an effective field theory, meaning that it provides a good description of a class of phenomena for a certain range of energies, distances or number of dimensions. In th ...
The String Theory Landscape
The String Theory Landscape

Document
Document

heavyions - Indico
heavyions - Indico

ICHEP_2010_Electroweak_Stars
ICHEP_2010_Electroweak_Stars

Diapositive 1
Diapositive 1

useful relations in quantum field theory
useful relations in quantum field theory

The Nobel Prize in Physics 2004
The Nobel Prize in Physics 2004

the periodic table of elementary particles
the periodic table of elementary particles

... elementary particles. The periodic table is derived from dualities of string theory and a Kaluza-Klein substructure for the six extra spatial dimensions. As a molecule is the composite of atoms with chemical bonds, a hadron is the composite of elementary particles with hadronic bonds. The masses of ...
Okada
Okada

hdwsmp2011 - FSU High Energy Physics
hdwsmp2011 - FSU High Energy Physics

here
here

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

The Accurate Mass Formulas of Leptons, Quarks, Gauge Bosons
The Accurate Mass Formulas of Leptons, Quarks, Gauge Bosons

Physical Laws of Nature vs Fundamental First Principles
Physical Laws of Nature vs Fundamental First Principles

JLab 12 GeV upgrade (3) [C3]
JLab 12 GeV upgrade (3) [C3]

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Document

... – Doesn’t explain nuclear b decay – Inconsistent at very high energy • So-called “Landau Pole” • Very high energy means E > m(visible universe) ...
The Family Problem: Extension of Standard Model with a
The Family Problem: Extension of Standard Model with a

Particle Physics
Particle Physics

... Without the nuclear force, the protons would be repelled by the Coulomb force. In 1935, Physicist Hideki Yukawa (日本人) predicted the particle for the nuclear force. he called it a ‘meson’ ...
Gregory Moore - Rutgers Physics
Gregory Moore - Rutgers Physics

... With a great boost from string theory, after 40 years of intellectual ferment a new field has emerged with its own distinctive character, its own aims and values, its own standards of proof. One of the guiding principles is certainly Hilbert’s 6th Problem (generously interpreted): Discover the ultim ...
Basics of Lattice Quantum Field Theory∗
Basics of Lattice Quantum Field Theory∗

... 1.3 Why PT is insufficient The above approach cannot work if • the spectrum of the free theory=zeroth order is qualitatively wrong example: confined quarks • often one shows within PT : bound state masses ∝ e−c/gR • ⇒ invisible in any order PT, c is uncomputable in PT Even if this is not so: converg ...
What are we are made of?
What are we are made of?

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Technicolor (physics)

Technicolor theories are models of physics beyond the standard model that address electroweak gauge symmetry breaking, the mechanism through which W and Z bosons acquire masses. Early technicolor theories were modelled on quantum chromodynamics (QCD), the ""color"" theory of the strong nuclear force, which inspired their name.Instead of introducing elementary Higgs bosons to explain observed phenomena, technicolor models hide electroweak symmetry and generate masses for the W and Z bosons through the dynamics of new gauge interactions. Although asymptotically free at very high energies, these interactions must become strong and confining (and hence unobservable) at lower energies that have been experimentally probed. This dynamical approach is natural and avoids issues of Quantum triviality and the hierarchy problem of the Standard Model.In order to produce quark and lepton masses, technicolor has to be ""extended"" by additional gauge interactions. Particularly when modelled on QCD, extended technicolor is challenged by experimental constraints on flavor-changing neutral current and precision electroweak measurements. It is not known what is the extended technicolor dynamics.Much technicolor research focuses on exploring strongly interacting gauge theories other than QCD, in order to evade some of these challenges. A particularly active framework is ""walking"" technicolor, which exhibits nearly conformal behavior caused by an infrared fixed point with strength just above that necessary for spontaneous chiral symmetry breaking. Whether walking can occur and lead to agreement with precision electroweak measurements is being studied through non-perturbative lattice simulations.Experiments at the Large Hadron Collider are expected to discover the mechanism responsible for electroweak symmetry breaking, and will be critical for determining whether the technicolor framework provides the correct description of nature. In 2012 these experiments declared the discovery of a Higgs-like boson with mass approximately 7002125000000000000♠125 GeV/c2; such a particle is not generically predicted by technicolor models, but can be accommodated by them.
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