Probing the neutrino trident process using the Scattering and Neutrino Detector at HL-LHC and SHiP

TL;DR

This paper explores the potential to detect the rare neutrino trident process at HL-LHC and SHiP, providing predictions and estimating event rates for future experiments in different energy ranges.

Contribution

It presents the first predictions for neutrino trident scattering at SHiP and analyzes the detection prospects at HL-LHC and SHiP with upgraded detectors.

Findings

Neutrino trident process can be observed at HL-LHC and SHiP for certain lepton final states.

The experiments probe the process in complementary energy ranges.

Estimated event rates suggest detectability with upgraded detectors.

Abstract

Neutrino trident scattering is a rare process in the Standard Model characterized by two charged leptons in the final state. In this work, we investigate the possibility of probing the neutrino trident process using the Scattering and Neutrino Detector (SND) at the Large Hadron Collider during its high - luminosity run (HL - LHC). In addition, we present, for the first time, the predictions for the neutrino trident scattering at SHiP beam - dump experiment, where a similar detector is expected to be installed. We demonstrate that these two experiments probe the process in a complementary energy range. Assuming the upgraded detector configuration, we estimate the cross-sections associated with all possibles leptonic final states in coherent and incoherent processes. The corresponding number of neutrino trident scatterings in the SND at HL-LHC and SHiP are presented. Our results indicate that this process can be observed in these forthcoming experiments for some specific combinations of leptons in the final state.