Lepton Flavour Violation at HERA

Abstract

The $e^{+}p$-data collected with the ZEUS ($\mathcal{L}=47.7$ pb${}^{-1}$) and the H1 ($\mathcal{L}=37$ pb${}^{-1}$) detectors at HERA in 1994--1997 are analysed for signals of lepton flavour violation mediated by leptoquark exchange, both in the muon and the tau channels. No evidence for lepton flavour violation is found and limits on the leptoquarks' Yukawa couplings are set.

4 pages, 3 figures, 1 table, contributed to the Proceedings of 8th International Workshop on Deep Inelastic Scattering and QCD (DIS2000), Liverpool, UK, April 25th - April 30th, 2000 (table replaced)