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arXiv · 2210.00783

Probing the valence quark region of nucleons with Z bosons at LHCb

Tianqi Li
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Abstract

Because of its forward coverage, LHCb can probe the valence quark distributions of protons and nuclei at small and large Bjorken-x with high precision. This proceeding presents new LHCb measurements of Z boson production in association with charm jet in the forward region of proton-proton collisions and Z boson production in proton-lead collisions. Z+charm jet production could be sensitive to a valence-like intrinsic-charm component in the proton wave function. The measurements of Z production in proton-lead collisions provide new constraints on the partonic structure of nucleons inside nuclei. Comparisons between the results and calculations with parton distribution functions are also discussed.

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Tianqi Li. 2022-10-03. Probing the valence quark region of nucleons with Z bosons at LHCb. https://arxiv.org/abs/2210.00783

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