Strongly-interacting Electroweak Sector At e-e- Colliders
  We study the possible experimental signatures resulting from a strongly-interacting electroweak sector at $e^-e^-$ colliders, emphasizing the signal enhancement by high beam polarization. We also discuss the unique role for operating the collider in $e^-\gamma$ mode to produce a heavy isosinglet vector state $\omega_T$. 
Tao Han