A Search for R-Parity Violated Scalar Tau-neutrino ($\widetilde{\nu_{\tau}}$) at the Future Circular Collider

TL;DR

This paper explores the potential of the Future Circular Collider to discover or exclude scalar tau neutrinos through R-parity violating interactions, providing projections for mass reach and coupling sensitivity at 100 TeV energy.

Contribution

It presents the first detailed analysis of scalar tau neutrino searches at the FCC, including discovery, observation, and exclusion potentials for various mass and coupling scenarios.

Findings

FCC-pp can discover $ ilde{ u}_ au$ up to 28.8 TeV

It can observe $ ilde{ u}_ au$ up to 32.0 TeV

It can exclude $ ilde{ u}_ au$ masses up to 34.5 TeV

Abstract

Future Circular Collider is one of the next generation energy-frontier proton-proton colliders with 100 TeV center of mass energy and promising very high luminosity. FCC will be an extraordinary machine for searching Beyond the Standard Model physics because of its very high center of mass energy and luminosity. Searching supersymmetric particles via R-parity violated interactions could be listed in promising BSM physics at the FCC. Scalar tau neutrino is one of the most interesting predictions. A search for $\widetilde{\nu}_{\tau}$ neutrino decaying into $e\mu$ final state via R-parity violated interactions has been conducted at the FCC-pp. It is seen from this research that FCC-pp will be able to discover $\widetilde{\nu}_{\tau}$ up to 28.8 TeV, observe 32.0 TeV and exclude 34.5 TeV mass values by taking $\lambda_{311}^{\prime}=0.11$ and $\lambda_{312}=\lambda_{321}=0.07$ at $\mathcal{L}_{int}=17500\,fb^{-1}$. FCC-pp, also, will allow to examine very low values of the Yukawa coupling constants which cause R-parity violation interactions. It is obviously seen that FCC-pp will give an opportunity for detailed research on scalar tau neutrino production and decay via R-parity violated interactions.