h μτ at Hadron Colliders
Tao Han, Danny Marfatia
Abstract
We study the observability for a lepton flavor-changing decay of a Higgs boson h μτ at hadron colliders. Flavor-changing couplings of a Higgs boson exist at tree level in models with multiple Higgs doublets. The hμτ coupling is particularly motivated by the favorable intepretation of νμ-ντ oscillation. We find that at the Tevatron Run II the unique μτ signature could serve as the Higgs discovery channel, surpassing expectations for Higgs boson searches in the SM and in a large parameter region of the MSSM. The sensitivity will be greatly improved at the LHC, beyond the coverage at a muon collider Higgs factory.
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