A higher dimensional explanation of the excess of Higgs-like events at CERN LEP

J. J. van der Bij; S. Dilcher

doi:10.1016/j.physletb.2006.05.056

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arXiv · hep-ph/0605008

A higher dimensional explanation of the excess of Higgs-like events at CERN LEP

J. J. van der Bij·S. Dilcher

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Abstract

Searches for the SM Higgs boson by the four LEP experiments have found a 2.3 sigma excess at 98 GeV and a smaller 1.7 sigma at around 115 GeV. We interpret these excesses as evidence for a Higgs boson coupled to a higher dimensional singlet scalar. The fit implies a relatively low dimensional mixing scale mu_{lhd} < 50 GeV, which explains the low confidence level found for the background fit in the range s^{1/2} > 100 GeV. The data show a slight preference for a five-dimensional over a six-dimensional field. This Higgs boson cannot be seen at the LHC, but can be studied at the ILC.

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J. J. van der Bij, S. Dilcher. 2006-04-30. A higher dimensional explanation of the excess of Higgs-like events at CERN LEP. https://doi.org/10.1016/j.physletb.2006.05.056

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