High Precision DIS with the LHeC

TL;DR

The paper reviews how the LHeC collider can significantly improve the precision of proton structure measurements, reducing uncertainties in PDFs, which is vital for interpreting BSM signals at the LHC.

Contribution

It demonstrates the potential of the LHeC to enhance PDF precision beyond current and LHC-only capabilities, aiding future high-energy physics analyses.

Findings

LHeC can substantially reduce PDF uncertainties.

Improved PDFs will enhance BSM signal interpretation.

LHeC complements LHC data for precision measurements.

Abstract

The potential of the LHeC, a future electron-proton collider, for precision Deep Inelastic Scattering measurements is reviewed with particular emphasis on the reduction of uncertainties on the parton distribution functions (PDFs) of the proton. The interpretation of possible Beyond Standard Model (BSM) signals at the LHC is crucially dependent on precise knowledge of the predictions of the Standard Model (SM) and the uncertainties on PDFs are a limiting factor. The LHeC project, running in parallel with later stages of LHC running, would provide much improved precision on the PDFs as compared to the precision expected from LHC data alone.