Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-02-23
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX, 23 pages, 13 PostScript figures (contribution to the Summary Report of the Higgs WG, Workshop `Physics at TeV Colliders
Scientific paper
The reconstruction of the Higgs potential in the Minimal Supersymmetric Standard Model (MSSM) requires the measurement of the trilinear Higgs self-couplings. The `double Higgs production' subgroup has been investigating the possibility of detecting signatures of processes carrying a dependence on these vertices at the Large Hadron Collider (LHC) and future Linear Colliders (LCs). As reference reactions, we have chosen $gg\to hh$ and $e^+e^-\to h h Z$, respectively, where $h$ is the lightest of the MSSM Higgs bosons. In both cases, the $Hhh$ interaction is involved. For $m_H>2m_h$, the two reactions are resonant in the $H\to hh$ mode, providing cross sections which are detectable at both accelerators and strongly sensitive to the strength of the trilinear coupling involved. We explore this mass regime of the MSSM in the $h\to b\bar b$ decay channel, also accounting for irreducible background effects.
Lafaye Remi
Miller Daniel J.
Moretti Sébastien
Muhlleitner Margarete M.
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