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Possible sneutrino-pair signatures with R-parity breaking

V. Barger·W. -Y. Keung·R. J. N. Phillips
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Abstract

If sneutrinos are the lightest supersymmetry partners and $R$-parity is not conserved, the process $e^+e^- \to \tilde {\barν} \tilde ν$ can have striking signatures due to the decay modes $\tildeν\to\ell^+\ell'^-$ or $\tildeν\to q \bar q'$. We present cross section formulas and discuss event rates and detection at the upgraded $e^+e^-$ collider LEP. Four-lepton signals should be detectable up to sneutrino mass $\tilde {m}_ν= 80$ GeV and maybe beyond; four-jet signals should be detectable up to $\tilde {m}_ν= 70$ GeV, but would probably be obscured thereafter by $WW$ background.

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V. Barger, W. -Y. Keung, R. J. N. Phillips. 1995-07-26. Possible sneutrino-pair signatures with R-parity breaking. https://doi.org/10.1016/0370-2693(95)01225-1

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