Webb24 maj 2007 · A strongly-coupled technicolor theory is identified as the effective theory on D-branes, and from the gauge/gravity correspondence, we explore the weakly-coupled … WebbIn this thesis we use lattice eld theory to study di erent frontier problems in strongly coupled non-Abelian gauge theories, focusing on large-N models and walking technicolor theories. Implementing lattice studies of technicolor theories, we consider the SU(2) gauge theory with two fermions transforming under the adjoint representation,

Holographic Walking Technicolor HWTC Project Fact Sheet

Webb1 feb. 1994 · We consider a minimal technicolor model in which the ordinary and technicolor sectors are coupled by a [ital massless] scalar doublet. When technicolor interactions become strong, the resulting technicolor condensate not only breaks the electroweak symmetry, but also causes the scalar to develop a vacuum expectation value. WebbTechnicolor Theories Preon Theory Acceleron Theory Boson Theories A particle physicist will work with pioneering technologies such as high-energy colliders to investigate the inner workings of quantum mechanics and more high-energy physics. tac dvd 教材

Ultra Minimal Technicolor and its Dark Matter TIMP

Webb12 dec. 2012 · The almost conformal dynamics of walking technicolor (TC) implies the existence of the approximate scale invariance, which breaks down spontaneously by the … WebbSpontaneous symmetry breaking is a spontaneous process of symmetry breaking, by which a physical system in a symmetric state spontaneously ends up in an asymmetric state. In particular, it can describe systems where the equations of motion or the Lagrangian obey symmetries, but the lowest-energy vacuum solutions do not exhibit that … 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 … Visa mer The mechanism for the breaking of electroweak gauge symmetry in the Standard Model of elementary particle interactions remains unknown. The breaking must be spontaneous, meaning that the underlying … Visa mer Technicolor is the name given to the theory of electroweak symmetry breaking by new strong gauge-interactions whose characteristic energy scale ΛTC is the weak scale itself, ΛTC ≈ FEW ≡ 246 GeV . The guiding principle of technicolor is "naturalness": basic … Visa mer The enhancement described above for walking technicolor may not be sufficient to generate the measured top quark mass, even for an ETC scale as low as a few TeV. However, this problem could be addressed if the effective four-technifermion coupling resulting from ETC … Visa mer Any framework for physics beyond the Standard Model must conform with precision measurements of the electroweak parameters. Its consequences for physics at existing and future high-energy hadron colliders, and for the dark matter of … Visa mer Elementary Higgs bosons perform another important task. In the Standard Model, quarks and leptons are necessarily massless because … Visa mer Since quark and lepton masses are proportional to the bilinear technifermion condensate divided by the ETC mass scale squared, their tiny values can be avoided if the condensate is enhanced above the weak-αTC estimate in Eq. (2), During the 1980s, … Visa mer Lattice gauge theory is a non-perturbative method applicable to strongly interacting technicolor theories, allowing first-principles exploration of walking and conformal dynamics. … Visa mer tac dvd講座