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Multi-lepton events at HERA

Andrea Parenti
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Abstract

Events containing high-$P_T$ multi-leptons were sought at HERA by the H1 and ZEUS collaborations. Experimental data were compared to simulations of $γγ\to l^+ l^-$ processes, and H1 extracted the total and differential cross sections of the processes. The doubly-charged Higgs, which decays into lepton pairs, was analysed by H1 as a possible source of the multi-electron events, which have been observed at high invariant masses.

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Andrea Parenti. 2007-02-21. Multi-lepton events at HERA. https://arxiv.org/abs/hep-ex/0702033

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