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

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

2000-05-30

arxiv.org/abs/hep-ph/0005295v2

Phys.Lett. B500 (2001) 297-303

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1016/S0370-2693(01)00076-4

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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