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Sneutrino-Higgs mixing in WW and ZZ production in supersymmetry with R-parity violation

S. Bar-Shalom·G. Eilam·B. Mele
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Abstract

We consider new s-channel scalar exchanges in e+e- -> ZZ,W+W- in supersymmetry with a small lepton number violation. We show that a small bilinear R-parity violating term which leads to sneutrino--Higgs mixing can give rise to a significant scalar resonance enhancement in e+e- -> ZZ,W+W-. We use the LEP2 measurements of the WW and ZZ cross-sections to place useful constraints on this scenario. We also find, under conservative assumptions on the relevant parameter space involved, that such an exchange of the sneutrino-like admixture in e+e- -> ZZ,W+W- may be accessible to a 500 GeV e+e- collider.

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S. Bar-Shalom, G. Eilam, B. Mele. 2000-12-18. Sneutrino-Higgs mixing in WW and ZZ production in supersymmetry with R-parity violation. https://doi.org/10.1016/s0370-2693(01)00076-4

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