Forward Neutrino Fluxes at the LHC

TL;DR

This paper introduces a fast simulation tool for estimating high-energy neutrino fluxes at the LHC, aiding the upcoming neutrino physics experiments by providing reliable flux predictions and event rate estimates.

Contribution

It presents a new RIVET-based simulation module for LHC neutrino fluxes, including energy distributions, origins, and event rate predictions for FASERv and SND@LHC detectors.

Findings

Provides expected neutrino energy distributions for detectors.

Analyzes neutrino origins in collision events.

Estimates neutrino event rates at LHC detectors.

Abstract

With the upcoming Run 3 of the LHC, the FASERv and SND@LHC detectors will start a new era of neutrino physics using the far-forward high-energy neutrino beam produced in collisions at ATLAS. This emerging LHC neutrino physics program requires reliable estimates of the LHC's forward neutrino fluxes and their uncertainties. In this paper we provide a new fast-neutrino flux simulation, implemented as a RIVET module, to address this issue. We present the expected energy distributions going through the FASERv and SND@LHC detectors based on various commonly used event generators, analyze the origin of those neutrinos, and present the expected neutrino event rates.