Production of Neutral Higgs-Boson Pairs at LHC

Abstract

The reconstruction of the Higgs potential in the Standard Model or supersymmetric theories demands the measurement of the trilinear Higgs couplings. These couplings affect the multiple production of Higgs bosons at high energy colliders. We present a systematic overview of the cross sections for the production of pairs of (light) neutral Higgs bosons at the LHC. The analysis is carried out for the Standard Model and its minimal supersymmetric extension.

Figures (7)

• Figure 1: Processes contributing to Higgs-pair production in the Standard Model at the LHC: double Higgs-strahlung, $WW/ZZ$ fusion, and $gg$ fusion (generic diagrams).
• Figure 2: Processes contributing to double and triple Higgs production involving trilinear couplings in the MSSM.
• Figure 3: Processes which contribute to double light plus heavy Higgs production in the MSSM but which do not involve trilinear couplings.
• Figure 4: The cross sections for gluon fusion, $WW/ZZ$ fusion and double Higgs-strahlung $WHH$, $ZHH$ in the SM. The vertical arrows correspond to a variation of the trilinear Higgs coupling from $1/2$ to $3/2$ of the SM value.
• Figure 6: Total cross sections for MSSM $Hh$ production in the processes $WHh$ and $ZHh$ for $\tan\beta=3$, including mixing effects ($A=1$ TeV, $\mu=-1$ TeV).