paper

Searching for a very light Higgs boson at the Tevatron

arXiv:hep-ph/0306045 · doi:10.1103/PhysRevD.68.077701

Abstract

Light Higgs bosons (h^0) with a mass below 60 GeV may have escaped detection at LEP due to a suppressed cross-section for e^+e^-\to Zh^0. Their discovery is also problematic in standard search channels at the Tevatron Run II and LHC. Such a h^0 can arise in the two Higgs doublet model (2HDM) and in the Minimal Supersymmetric Standard Model (MSSM) with explicit CP violating phases. We propose the mechanism p\bar p \to H^\pm h^0 which offers cross-sections of up to 500 fb in the 2HDM, or up to 100 fb in the MSSM. The possibility of a large branching ratio for H^\pm\to h^0W^\pm would give rise to the non-standard signature h^0h^0W^\pm which might facilitate detection.

7 pages, 2 figures, minor clarifications added, to appear in Phys.Rev.D

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