# Quark Matter 2018

13-19 May 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

## Implications for small-system collectivity from a comprehensive set of soft physics measurements in a wide rapidity range in 200 GeV p$+$Au collisions by PHENIX

14 May 2018, 17:10
20m
Sala Mosaici-1, 3rd Floor (Palazzo del Casinò)

### Sala Mosaici-1, 3rd Floor

#### Palazzo del Casinò

Parallel Talk Collectivity in small systems

### Speaker

Qiao Xu (Vanderbilt University (US))

### Description

Proton-nucleus collisions play an important role as a control system for
interpreting hot nuclear matter effects in $A+A$ collisions. Yet, there is a large amount of data from both RHIC and the LHC that indicate that collective effects are also present in such small systems. Understanding the origin of these effects is still incomplete, since a variety of models with very different underlying physics have been shown to describe $p+A$ data.

We present a comprehensive set of measurements of soft-physics observables and
detailed comparisons with theoretical models. These measurements include
$v_2(p_T)$ and $v_3(p_T)$ for inclusive and identified particles at mid-rapidity, $v_2(p_T)$ for hadrons and heavy-flavor muons at forward rapidity, multi-particle correlations as a function of event multiplicity, the centrality dependence of $dN_{ch}/d\eta$, and identified particle spectra. The implications for the origin of collectivity in $p+Au$ collisions at RHIC will be discussed.

Collaboration PHENIX Experiment Presenter name already specified

### Primary author

Gabor David (Brookhaven National Laboratory)

### Presentation Materials

 QM2018-QiaoXu-final.key QM2018-QiaoXu-final.pdf