VECTOR RESONANCES FROM A STRONG ELECTROWEAK SECTOR AT LINEAR COLLIDERS

We explore the usefulness of very energetic linear e+e- colliders in t he TeV range in studying an alternative scheme of electroweak symmetry breaking based on a strong interacting sector. The calculations are p erformed within the BESS model which contains new vector resonances. I f the mass M(V) of the new boson multiplet lies not far from the maxim um machine energy, or if it is lower, such a resonant contribution wou ld be quite manifest. A result of our analysis is that also virtual ef fects are important. It appears that annihilation into a fermion pair in such machines, at the considered luminosities, would improve only m arginally on existing limits ff polarized beams are available and left -right asymmetries are measured. On the other hand, the process of W-p air production by e+e- annihilation would allow for sensitive tests of the hypothesized strong sector, especially if the W polarizations are reconstructed from their decay distributions, and the more so the hig her the energy of the machine. An e+e- collider with c.m. energy squar e-root s = 500 GeV could improve the limits on the model for the range 500 < M(V)(GeV) < 1000 when W polarization is not reconstructed. If W polarizations are reconstructed, then the bounds improve for the enti re expected range of M(V). These bounds become more stringent for larg er energy of the collider. We have also studied the detectability of t he new resonances through the fusion subprocesses, but this channel do es not seem to be interesting even for a collider with a c.m. energy s quare-root s = 2 TeV.