Low energy effects of new interactions in the electroweak boson sector.

摘要: Novel strong interactions in the electroweak bosonic sector are expected to induce effective between Higgs doublet field and gauge bosons which lead anomalous $\mathrm{WWZ}$ $\mathrm{WW}\ensuremath{\gamma}$ vertices once acquires a vacuum expectation value. Using linear realization of Goldstone bosons, we consider complete set dimension-six operators SU(2)\ifmmode\times\else\texttimes\fi{}U(1) invariant conserve $C$ $P$. This approach allows us study effects new physics originates above 1 TeV boson mass dependence results can be investigated. Four affect low energy present CERN LEP experiments at tree level. Another five influence neutral charged current one-loop level three these vertices. Their loop contributions most logarithmically divergent, logarithmic divergences understood as renormalizations four contribute Constraints on remaining obtained if one assumes absence cancellations contributions. The resulting bounds triple couplins modest, emphasizes importance direct measurements vertices, e.g., ${W}^{+}{W}^{\ensuremath{-}}$ production II.