Discovering a Nonstandard Higgs in a Standard Way

Details Discovering a Nonstandard Higgs in a Standard Way Discovering a Nonstandard Higgs in a Standard Way

2009-03-02

arxiv.org/abs/0903.0403v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 6 figures

Scientific paper

In this note, we explore the Tevatron and LHC detection prospects for a nonstandard Higgs whose decays contain both missing and visible energy. In particular, we consider the decay $h \to \chi_2 \chi_1$ where $\chi_1$ is stable and $\chi_2$ decay back to $\chi_1$ and additional visible particles. We focus on adapting standard searches for both Higgses and supersymmetry to these decays. In these channels, the Tevatron has little reach, but the LHC has good prospects for decays that involve leptons or neutrinos. In particular, the standard WW* search for a Higgs produced in vector boson fusion has the largest reach. Trilepton searches and invisible Higgs searches are less powerful, but can give corroborating evidence. However, such standard searches could become inefficient for these signals if the analyses adopt model dependent tools such as matrix elements and neural nets.

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