Effective LFV couplings at the electron-proton collider

TL;DR

This paper evaluates the potential of the proposed electron-proton collider to measure lepton flavor-violating couplings, analyzing signal significance, sensitivity, and the effect of beam polarization.

Contribution

It provides a detailed sensitivity analysis of LFV couplings at an electron-proton collider using cuts-based and optimal observables methods, including beam polarization effects.

Findings

High sensitivity to LFV couplings at 1.3 TeV collider

Beam polarization improves measurement accuracy

Optimal observables enhance coupling sensitivity

Abstract

We estimate the accuracy with which the coefficient of the lepton flavour-violating dimension-six operators can be measured at the proposed electron-proton collider. Cuts-based analysis is performed to compute the signal significance at the centre of mass energy of 1.3 TeV, with a total integrated luminosity upto $\sim$ab$^{-1}$. Using the optimal observables method for the kinematic distributions, we study the sensitivity of the effective couplings. We also study the impact of the initial electron beam polarisation.