Loop Induced Higgs Boson Pair Production at e+e- Colliders

Abstract

We analyse the loop induced production of Higgs boson pairs at future high--energy $e^{+}{e}^{-}$ colliders, both in the Standard Model and in its minimal supersymmetric extension. The cross sections for Standard Model Higgs pair production through $W/Z$ boson loops, $\ee \ra H^0 H^0$, are rather small but the process could be visible for high enough luminosities, especially if longitudinal polarization is made available. In the Minimal Supersymmetric Standard Model, the corresponding processes of CP--even or CP--odd Higgs boson pair production, $\ee \ra hh, HH, Hh$ and $\ee \ra AA$ have smaller cross sections, in general. The additional contributions from chargino/neutralino and slepton loops are at the level of a few percent in most of the supersymmetric parameter space.

arXiv comment24 pages including 6 figures, uses Latex. The complete file is also available at http://itpaxp1.physik.uni-karlsruhe.de/prep/prep.html

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• Pair Production of Neutral Higgs Bosons through Noncommutative QED Interactions at Linear Colliders
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• Pair production of neutral Higgs bosons from the left-right twin Higgs model at the ILC and LHC
• Using Scalars to Probe Theories of Low Scale Quantum Gravity
• Neutral Higgs Boson Production at e+e- Colliders in the Complex MSSM: A Full One-Loop Analysis
• Pair production of Higgs bosons associated with $Z$ boson in the left-right twin Higgs model at the ILC
• Higgs Pair Production at the LHC and ILC from general potential
• Higgs pair production in association with a vector boson at e+e- colliders in theories of higher dimensional gravity
• Neutral Higgs boson pair production via $\gamma \gamma$ collision in the minimal supersymmetric standard model at linear colliders
• The reaction e+e- --> hh recomputed
• New Physics in Double Higgs Production at Future $e^{+}{e}^{-}$ Colliders