TL;DR
This paper summarizes the combined results of Higgs boson searches at LEP, excluding the Standard Model Higgs with mass below 114.4 GeV/c^2 and discussing additional beyond Standard Model searches.
Contribution
It provides a comprehensive statistical combination of LEP experiments' Higgs search results, setting limits and summarizing beyond Standard Model searches.
Findings
Standard Model Higgs below 114.4 GeV/c^2 excluded at 95% CL
Combined data from ALEPH, DELPHI, L3, OPAL
Summary of beyond Standard Model Higgs searches
Abstract
In this paper we report on the legacy of Higgs boson searches at LEP. Specifically, the results of the statistical combination of the searches carried out by the ALEPH, DELPHI, L3 and OPAL experiments are presented. In the search for the Standard Model (SM) Higgs boson, a signal with mh<114.4 GeV/c^2 has been excluded at the 95% confidence level (CL) or higher. The LEP collaborations also carried out extensive searches for Higgs particles predicted by many scenarios beyond the Standard Model. Here we can only report on a very small fraction of these searches and refer the reader to the complete list of LEP-combined search results.
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