# EPS-HEP2019

10-17 July 2019
Ghent
Europe/Brussels timezone

## Quarkonia production in pPb and PbPb collisions at LHCb

12 Jul 2019, 09:36
18m
ICC - Baeckeland 1 (Ghent)

### ICC - Baeckeland 1

#### Ghent

Parallel talk Heavy Ion Physics

### Speaker

Giacomo Graziani (INFN, Sezione di Firenze (IT))

### Description

We present LHCb results on quarkonia production in proton-lead collisions, using the data collected at 5.02 and 8.16 TeV nucleon-nucleon centre-of-mass energies, covering forward (pPb configuration) and backward (Pbp configuration) rapidities. Measurements include charmonia, where the prompt and from-b-decay components are disentangled, and bottomonia states. The large increase in size of the heavy flavour sample collected at 8.16 TeV with respect to the 5.02 TeV sample allows a remarkable improvement in the accuracy of the studies of nuclear matter effects. Coherent production of J/Psi in PbPb collisions are also presented.

The largely unknown parton distribution functions of nuclei and the similarities observed between high-multiplicity pp and pPb events compared to PbPb, often described by means of hydrodynamic models, are the main motivations for an extended pPb data taking program during LHC Run 3 and Run 4. The future increase in luminosity combined with LHCb's unique detector capabilities will allow new and precise measurements to be performed. Prospects will be presented on Drell-Yan production down to 5 GeV, DDbar correlations, and fully reconstructed b hadrons.