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

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.

7 pages in revtex, 3 figures embadded in the text using epsfig. As will appear in Phys. Lett. B. The main change to the paper with respect to Version 1 was a correction to the numerical results due to an error detected in the scalar mass matrix

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Cited by in corpus (3)

• Flavor changing Z-decays from scalar interactions at a Giga-Z Linear Collider
• New scalar resonances from sneutrino-Higgs mixing in supersymmetry with small lepton number (R-parity) violation
• R-Parity Violating Supersymmetry and the 125 GeV Higgs signals