Model-independent analysis of four-fermion contact interaction at e^+e^- collider

Abstract

We study electron-electron contact-interaction searches in the process e^+e^-\to e^+e^- at a future e^+e^- Linear Collider with both beams longitudinally polarized. We evaluate the model-independent constraints on the coupling constants, emphasizing the role of beam polarization, and make a comparison with the case of e^+e^-\toμ^+μ^-.

10 pages with 6 figures and 1 table Presented at the 12th International Seminar on High Energy physics "Quarks-2002", Novgorod, Russia, June 1 -- 7, 2002