HERA signature-based searches I: events with isolated leptons and missing transverse momentum at HERA

TL;DR

This paper reports on HERA experiments searching for events with isolated leptons and missing transverse momentum, finding results consistent with the Standard Model after previous excesses.

Contribution

It provides a comprehensive analysis of isolated lepton events across all three generations at HERA, updating previous results with combined data.

Findings

Results are compatible with the Standard Model.

No significant excesses observed in combined data.

Updated search results across all lepton generations.

Abstract

Recent results of searches for events containing isolated leptons and missing transverse momentum at HERA are presented. Searches in this final state have yielded notable excesses over Standard Model expectations in the past. Searches for isolated leptons in channels corresponding to all three generations of leptons over the full HERA running period are now available. The combined H1+ZEUS results for searches for electrons and muons are compatible with the Standard Model.