Search for Charged Higgs bosons: Combined Results Using LEP Data

ALEPH and DELPHI and L3 and OPAL and LEP Collaborations;Delaere, Christophe;Lemaitre, Vincent;van der Aa, Olivier;et.al.
(2013) European Physical Journal C. Particles and Fields — Vol. 73, p. 2013 (2463)

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Abstract
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for pair-produced charged Higgs bosons in the framework of Two Higgs Doublet Models (2HDMs). The data of the four experiments have been statistically combined. The results are interpreted within the 2HDM for Type I and Type II benchmark scenarios. No statistically significant excess has been observed when compared to the Standard Model background prediction, and the combined LEP data exclude large regions of the model parameter space. Charged Higgs bosons with mass below 80 (Type II scenario) or 72.5 TeX (Type I scenario, for pseudo-scalar masses above 12 TeX ) are excluded at the 95 % confidence level.
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ALEPH and DELPHI and L3 and OPAL and LEP Collaborations, Delaere, C., Lemaitre, V., van der Aa, O., & et al. (2013). Search for Charged Higgs bosons: Combined Results Using LEP Data. European Physical Journal C. Particles and Fields, 73, 2013. https://doi.org/10.1140/epjc/s10052-013-2463-1 (Original work published 2463)