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Title: Origins of collectivity in small systems

Abstract

Here, we review recent developments in the theoretical description and understanding of multi-particle correlation measurements in collisions of small projectiles (p/d/ 3He) with heavy nuclei (Au, Pb) as well as proton+proton collisions. We focus on whether the physical processes responsible for the observed long range rapidity correlations and their azimuthal structure are the same in small systems as in heavy ion collisions. In the latter they are interpreted as generated by the initial spatial geometry being transformed into momentum correlations by strong final state interactions. However, explicit calculations show that also initial state momentum correlations are present and could contribute to observables in small systems. If strong final state interactions are present in small systems, recent developments show that results are sensitive to the shape of the proton and its fluctuations.

Authors:
 [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1478656
Grant/Contract Number:  
SC0012704; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Physics. A
Additional Journal Information:
Journal Volume: 967; Journal Issue: C; Journal ID: ISSN 0375-9474
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; correlations and fluctuations; heavy ion collisions; anisotropic flow; color glass condensate

Citation Formats

Schenke, Björn. Origins of collectivity in small systems. United States: N. p., 2017. Web. doi:10.1016/j.nuclphysa.2017.05.017.
Schenke, Björn. Origins of collectivity in small systems. United States. doi:10.1016/j.nuclphysa.2017.05.017.
Schenke, Björn. Mon . "Origins of collectivity in small systems". United States. doi:10.1016/j.nuclphysa.2017.05.017. https://www.osti.gov/servlets/purl/1478656.
@article{osti_1478656,
title = {Origins of collectivity in small systems},
author = {Schenke, Björn},
abstractNote = {Here, we review recent developments in the theoretical description and understanding of multi-particle correlation measurements in collisions of small projectiles (p/d/3He) with heavy nuclei (Au, Pb) as well as proton+proton collisions. We focus on whether the physical processes responsible for the observed long range rapidity correlations and their azimuthal structure are the same in small systems as in heavy ion collisions. In the latter they are interpreted as generated by the initial spatial geometry being transformed into momentum correlations by strong final state interactions. However, explicit calculations show that also initial state momentum correlations are present and could contribute to observables in small systems. If strong final state interactions are present in small systems, recent developments show that results are sensitive to the shape of the proton and its fluctuations.},
doi = {10.1016/j.nuclphysa.2017.05.017},
journal = {Nuclear Physics. A},
number = C,
volume = 967,
place = {United States},
year = {2017},
month = {9}
}

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