A Gauge Model for Extra Weak Bosons Implied by Compositeness of Quarks and Leptons
نویسنده
چکیده
Properties of extra weak bosons are discussed in a gauge model based on oc L SU " ) 2 ( × oc Y U " ) 1 ( × oc L " ) 2 ( 68 . The physics of oc L " ) 2 ( 68 respects the duality in the Higgs and confining phases, where massive gauge bosons in the Higgs phase are equivalently represented by composite vector bosons in the confining phase below the scale of oc L " ) 2 ( 68 . The interactions for oc L " ) 2 ( 68 singlet composites induced in the confining phase can be generated by nonlinear interactions of the four Fermi type respecting SU L oc ( ) 2 " × U Y oc ( ) 1 " , which create quarks, qi A (A=r,g,b; i=1,2), leptons, " i , vector bosons, V a μ ( ) (a=1,2,3) and the Higgs scalar, φ , made by scalar subconstituents, c A 0, , and spinor subconstituents, wi , as qi A ≈ c w A i , " i ≈ c wi 0 , V a μ ( ) ≈ w w a τ γ μ ( ) and φ ≈ ww . The physics described by these composites is equivalent to the one by SU L oc ( ) 2 " × U Y oc ( ) 1 " × 68 ( ) 2 Loc " below the confining scale. ∗ [email protected]
منابع مشابه
Composite Weak Bosons: a Lattice Analysis
The Standard Model [1] (SM) describes the strong, weak and electromagnetic interactions by a gauge theory based on the group GSM = SU(3) × SU(2) × U(1) which is broken by the Higgs mechanism to SU(3)×U(1). The theory is essentially determined once the matter fields and their transformation under the local gauge transformations of GSM are specified. The matter fields (leptons and quarks) and the...
متن کاملResource Letter: The Standard Model and Beyond
This Resource Letter provides a guide to literature on the Standard Model of elementary particles and possible extensions. In the successful theory of quarks and leptons and their interactions, important questions remain, such as the mechanism of electroweak symmetry breaking, the origin of quark and lepton masses, the source of the baryon asymmetry of the Universe, and the makeup of its matter...
متن کاملDeep Inelastic Scattering at Large Energy and Momentum Transfers: Recent Results from the HERA Collider∗
Data from H1 and ZEUS on the structure and the quark and gluon densities of the proton are discussed. A brief excursion is made into the field of inclusive diffraction by deep inelastic scattering. The comparison of ep and e+p scattering at large momentum transfers demonstrates clearly the presence of weak contributions in neutral current interactions. The comparison with the corresponding char...
متن کاملA Model of Leptons, Quarks and Bosons as Composites of Spinons
A model is presented of the leptons, quarks and bosons as non-elementary particles being composed of spinons. They are defined as massless fermions obeying the Weyl equations, but in addition are charged and assumed to have two internal degrees of freedom (weak colour charges). The corresponding total Lagrangian density of the quantized fields has a fermionic part and a gauge-field part, which ...
متن کاملB-meson mixing bounds on technicolor theories
Recent work by Burdman, Lane, and Rador has shown that BB̄ mixing places stringent lower bounds on the masses of topgluons and Z ′ bosons in classic topcolorassisted technicolor (TC2) models. This paper finds analogous limits on the Z ′ bosons of flavor-universal TC2 and non-commuting extended technicolor models, and compares the limits with those from precision electroweak measurements. A discu...
متن کامل