Single Production of Fourth Family Sneutrino via RPV Couplings at Linear Colliders

TL;DR

This paper investigates the potential to produce and detect a hypothetical fourth family sneutrino through R-parity violating interactions at future linear colliders, highlighting the sensitivity to small couplings and complementarity with LHC results.

Contribution

It introduces a study of single production of fourth family sneutrino via RPV couplings at linear colliders, focusing on decay channels and coupling sensitivity.

Findings

Couplings as small as 0.001 are detectable at future colliders.

The method offers better accuracy than indirect measurements.

Provides complementary insights to LHC results.

Abstract

The single production of fourth family sneutrino $\tilde{\nu}_{4}$ via R-parity violating interactions in electron-positron collisions has been investigated. We study the decays of $\tilde{\nu}_{4}$ into different flavor dilepton $e^{\pm}\mu^{\mp}$ via R-parity violation. It is shown that R-parity violating couplings $(\lambda_{411},\lambda_{412})$ down to 0.001 will be reachable at future linear colliders which would provide better accuracy comparing to the indirect measurements as complementary to the LHC results.