# Probing proton PDFs at high x with LHCb

### Submission summary

 As Contributors: Thomas Boettcher Preprint link: scipost_202107_00091v2 Date submitted: 2021-09-14 02:20 Submitted by: Boettcher, Thomas Submitted to: SciPost Physics Proceedings Proceedings issue: DIS2021 Academic field: Physics Specialties: High-Energy Physics - Experiment Nuclear Physics - Experiment Approach: Experimental

### Abstract

LHCb is a forward spectrometer at the LHC covering the pseudorapidity region $2<\eta<5$. Because of this forward coverage, LHCb can probe the proton parton distribution functions (PDFs) in previously unexplored kinematic regimes, in particular at very high and low Bjorken-$x$. This contribution presents LHCb measurements that can be used to constrain the proton PDFs, with a focus on the high-$x$ and high-$Q^2$ regime.

###### Current status:
Editor-in-charge assigned