$h\to μτ$ at Hadron Colliders

Details $h\to μτ$ at Hadron Colliders $h\to μτ$ at Hadron Colliders

2000-08-14

arxiv.org/abs/hep-ph/0008141v2

Phys.Rev.Lett. 86 (2001) 1442-1445

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version to appear in PRL

Scientific paper

10.1103/PhysRevLett.86.1442

We study the observability for a lepton flavor-changing decay of a Higgs boson $h\to \mu\tau$ at hadron colliders. Flavor-changing couplings of a Higgs boson exist at tree level in models with multiple Higgs doublets. The $h\mu\tau$ coupling is particularly motivated by the favorable intepretation of $\nu_\mu-\nu_\tau$ oscillation. We find that at the Tevatron Run II the unique $\mu\tau$ 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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