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PPT
PPT

... New factorization formulas are needed • Reanalysis and further measurements of polarized gluon distributions. A lattice QCD calculation of gluon spin contribution to nucleon spin. ...
Invitation to Elementary Particles
Invitation to Elementary Particles

Lecture I: Synthetic Spin-Orbit Coupling for Ultracold Atoms and
Lecture I: Synthetic Spin-Orbit Coupling for Ultracold Atoms and

Monday, Nov. 6, 2006
Monday, Nov. 6, 2006

Dark Matter Candidates - SLAC
Dark Matter Candidates - SLAC

ppt - IASA
ppt - IASA

The Facets of Relativistic Quantum Field Theory1
The Facets of Relativistic Quantum Field Theory1

... even as elementary particles. In atomic physics, however, one has to take into account that atoms have an inner structure. The quantum mechanical version of the Rutherford atom, a nucleus surrounded by a cloud of electrons, explains an enormous range of phenomena from solid state physics to chemistr ...
Monday, Mar. 28, 2005
Monday, Mar. 28, 2005

Possible large-N fixed-points and naturalness for O(N) scalar fields
Possible large-N fixed-points and naturalness for O(N) scalar fields

Majorana Fermions - Physics | Oregon State University
Majorana Fermions - Physics | Oregon State University

... Just this month, Banerjee et al. have claimed to observe MFs in QSLs: Quantum spin liquids (QSLs) are topological states of matter exhibiting remarkable properties such as the capacity to protect quantum information from decoherence. Whereas their featureless ground states have precluded their strai ...
Widening the Axion Window via Kinetic and Stückelberg Mixings
Widening the Axion Window via Kinetic and Stückelberg Mixings

... exceed the Planck scale [6] and, at the same time, reveals the tension to attain the QCD axion window [5,7]. In this Letter, we propose a new mechanism to widen the range of axion decay constants in theories where the intrinsic axion field range is limited. An implicit assumption behind the aforemen ...
September 1976 - SLAC
September 1976 - SLAC

teachers` resource book on fundamental particles and
teachers` resource book on fundamental particles and

... the values of any of the othcar ...
Elementary Particles: Building Blocks of Matter (117 pages)
Elementary Particles: Building Blocks of Matter (117 pages)

Particle Physics Part III Major Option 2008
Particle Physics Part III Major Option 2008

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JHEP07(2007)083 - IHEP Diffractive Group

Report - Jefferson Lab
Report - Jefferson Lab

Lecture notes - UCSD Department of Physics
Lecture notes - UCSD Department of Physics

Neutrino Oscillations and Beyond Standard Model Physics
Neutrino Oscillations and Beyond Standard Model Physics

Chapter 20 Parity, Charge Conjugation and CP
Chapter 20 Parity, Charge Conjugation and CP

Femtoscopy with unlike-sign kaons at STAR in 200 GeV Au+Au
Femtoscopy with unlike-sign kaons at STAR in 200 GeV Au+Au

Naturalness via scale invariance and non-trivial UV fixed points in a 4d O(N) scalar field model in the large-N limit
Naturalness via scale invariance and non-trivial UV fixed points in a 4d O(N) scalar field model in the large-N limit

Discrete Symmetries
Discrete Symmetries

Long-range azimuthal correlation
Long-range azimuthal correlation

Invariance Principles and Conservation Laws
Invariance Principles and Conservation Laws

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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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