Supersimple analysis of $e^{-}{e}^{+}\to ZH$ at high energy

Abstract

We study the process $e^{-}{e}^{+}\to ZH$ where $H$ represents the standard model (SM) Higgs particle $H_{SM}$, or the MSSM ones $h^0$ and $H^0$. In each case, we compute the one-loop effects and establish very simple expressions, called supersimple (sim), for the helicity conserving (dominant) and the helicity violating (suppressed) amplitudes. Such expressions, are then used to construct various cross sections and asymmetries, involving polarized or unpolarized beams and Z-polarization measurements. We examine the adequacy of such expressions to distinguish SM or MSSM effects, from other types of BSM (beyond the standard model) contributions.

38 pages, 57 figures. Paper has already appeared in Phys. Rev. D90, 073007 (2014 . Some misprints in Eqs.(B.17) have been corrected

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• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
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Cited by in corpus (3)

• Constraining Higgs boson effective couplings at electron-positron colliders
• Specific supersimple properties of $e^{-}{e}^{+}\to \gamma H$ at high energy
• Single Higgs boson production at the ILC in the left-right twin Higgs model