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.
Highlights
As the highest energy particle accelerator ever built, the Large Hadron Collider (LHC) is the source of the most energetic neutrinos created in a controlled laboratory environment
This will open a new window to study neutrino interactions at high energies and extend the LHC’s physics program in a new direction. This emerging LHC neutrino physics program requires reliable estimates of the LHC’s forward neutrino fluxes and their uncertainties. These estimates are typically based on established Monte Carlo (MC) event generators to simulate the production of hadrons in proton-proton interactions
These simulations tend to be rather computationally expensive, time consuming, and often require special expertise or code access that is not available to the broad community. This makes the simulation of neutrino fluxes with different generators, as, for example, needed to obtain flux uncertainties or for phenomenological studies, difficult to impossible. We address this issue and present an alternative fast neutrino flux simulation implemented as a RIVET [16,17] module
Summary
As the highest energy particle accelerator ever built, the Large Hadron Collider (LHC) is the source of the most energetic neutrinos created in a controlled laboratory environment. Placed directly in the LHC’s forward neutrino beam, both experiments are expected to detect thousands of neutrino interactions at TeV energies This will open a new window to study neutrino interactions at high energies and extend the LHC’s physics program in a new direction. This emerging LHC neutrino physics program requires reliable estimates of the LHC’s forward neutrino fluxes and their uncertainties. These estimates are typically based on established Monte Carlo (MC) event generators to simulate the production of hadrons in proton-proton interactions.
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