Contact interactions in the four-fermion processes at LEP2 and HERA

Abstract

We consider the possibility of experimental observation of flavor-diagonal and helicity conserving contact terms in the four fermion reactions e^+ e^- -> e^+ e^- \mu^+ \mu^- and e^- q -> e^- \mu^+ \mu^- q at LEP2 and HERA.

Comments: LaTeX, 7 pages, 12 figures in LaTeX format, uses axodraw.sty. To appear in the Proc. of XI Workshop on Quantum Field Theory and High Energy Physics (QFTHEP'96, St.Petersburg, Russia, September 1996)