LHCb results from proton ion collisions

TL;DR

The LHCb experiment analyzed proton-ion collisions in 2013, providing new measurements of Z boson production, quarkonium states, and particle correlations, expanding heavy ion physics insights.

Contribution

This paper presents the first forward Z production measurement in proton-lead collisions and detailed studies of quarkonium and particle correlations at LHCb.

Findings

First forward Z production measurement in proton-lead collisions

Measurement of nuclear modification factors for quarkonium states

Analysis of angular particle correlations in heavy ion events

Abstract

Proton-lead and lead-proton data taking during 2013 has allowed LHCb to expand its physics program to heavy ion physics. Results include the first forward measurement of Z production in proton-lead collisions as well as a measurement of the nuclear modification factor and forward-backward production of prompt and displaced J/$\psi$, $\psi$(2S) and $\Upsilon$. Angular particle correlations have also been measured for events of varying charged particle activity.