# Initial Stages 2021

Jan 10 – 15, 2021
Weizmann Institute of Science
Asia/Jerusalem timezone
See you at IS2023 in Copenhagen in June 2023

## Heavy gauge boson and photon production for initial state constraints with ALICE

Jan 14, 2021, 3:55 PM
20m
Andrea's room 3 (vDLCC)

### Andrea's room 3

#### vDLCC

oral Partonic structure of protons and nuclei

### Speaker

Sizar Aziz (Université Paris-Saclay (FR))

### Description

The parton distribution functions of nuclei are not well constrained for most of the kinematic domain probed with heavy-ion collisions at the LHC. Direct photons in proton-nucleus, W and Z boson production in proton-nucleus and nucleus-nucleus collisions at the LHC can be used to constrain the nuclear parton distribution functions. In this contribution, we present recent results on W- and Z-boson production in p-Pb collisions at $\sqrt{s_{\rm NN}} = 8.16$ TeV and in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with the ALICE forward muon spectrometer. The results will be compared to calculations obtained with or without including the nuclear modifications of the PDFs. Furthermore, we will present the latest ALICE results on the direct (isolated) photons and their correlations in pp and in p-Pb collisions at midrapidity.

### Primary author

Sizar Aziz (Université Paris-Saclay (FR))

### Presentation materials

 Recording Sizar_InitialStages.pdf