Measuring Chiral Parameters in the Strongly Interacting W system at a Linear Collider

Abstract

In the absence of a Higgs particle vector boson scattering amplitudes are generally described by an electroweak chiral Lagrangian below the resonance region. For a Linear Collider with CMS energy $\sqrt{s}=1.6TeV$ and an integrated luminosity of $200f{b}^{-1}$ we estimate the sensitivity on the chiral parameters ${\alpha }_4$ and ${\alpha }_5$. We consider the processes $e^{+}{e}^{-}\to W^{+}{W}^{-}\bar{\nu }\nu$ and $e^{+}{e}^{-}\to ZZ\bar{\nu }\nu$, performing a complete calculation which includes all relevant Feynman diagrams at tree level, without relying on the Equivalence Theorem or the Effective $W$ Approximation. The dominant backgrounds and $W/Z$ misidentification probabilities are accounted for.

Comments: LaTeX, 4 pages, 4 figures, uses snow2e.cls and snowtimes.sty. Contribution to the proceedings of the 1996 Snowmass Summer Conference