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Title: Tracing the origin of azimuthal gluon correlations in the color glass condensate

Here we examine the origins of azimuthal correlations observed in high energy proton-nucleus collisions by considering the simple example of the scattering of uncorrelated partons off color fields in a large nucleus. We demonstrate how the physics of fluctuating color fields in the color glass condensate (CGC) effective theory generates these azimuthal multiparticle correlations and compute the corresponding Fourier coefficients v n within different CGC approximation schemes. We discuss in detail the qualitative and quantitative differences between the different schemes. Lastly, we will show how a recently introduced color field domain model that captures key features of the observed azimuthal correlations can be understood in the CGC effective theory as a model of non-Gaussian correlations in the target nucleus.
Authors:
 [1] ;  [2] ;  [2] ;  [3]
  1. Univ. of Jyvaskyla (Finland); Univ. of Helsinki (Finland)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States); Heidelberg Univ. (Germany). Inst. for Theoretische Physik
Publication Date:
Report Number(s):
BNL-112119-2016-JA
Journal ID: ISSN 1029-8479; R&D Project: KB0301020; KB0301020
Grant/Contract Number:
SC00112704; AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 1; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Heavy Ion Phenomenology; QCD Phenomenology
OSTI Identifier:
1335445

Lappi, T., Schenke, B., Schlichting, S., and Venugopalan, R.. Tracing the origin of azimuthal gluon correlations in the color glass condensate. United States: N. p., Web. doi:10.1007/JHEP01(2016)061.
Lappi, T., Schenke, B., Schlichting, S., & Venugopalan, R.. Tracing the origin of azimuthal gluon correlations in the color glass condensate. United States. doi:10.1007/JHEP01(2016)061.
Lappi, T., Schenke, B., Schlichting, S., and Venugopalan, R.. 2016. "Tracing the origin of azimuthal gluon correlations in the color glass condensate". United States. doi:10.1007/JHEP01(2016)061. https://www.osti.gov/servlets/purl/1335445.
@article{osti_1335445,
title = {Tracing the origin of azimuthal gluon correlations in the color glass condensate},
author = {Lappi, T. and Schenke, B. and Schlichting, S. and Venugopalan, R.},
abstractNote = {Here we examine the origins of azimuthal correlations observed in high energy proton-nucleus collisions by considering the simple example of the scattering of uncorrelated partons off color fields in a large nucleus. We demonstrate how the physics of fluctuating color fields in the color glass condensate (CGC) effective theory generates these azimuthal multiparticle correlations and compute the corresponding Fourier coefficients vn within different CGC approximation schemes. We discuss in detail the qualitative and quantitative differences between the different schemes. Lastly, we will show how a recently introduced color field domain model that captures key features of the observed azimuthal correlations can be understood in the CGC effective theory as a model of non-Gaussian correlations in the target nucleus.},
doi = {10.1007/JHEP01(2016)061},
journal = {Journal of High Energy Physics (Online)},
number = 1,
volume = 2016,
place = {United States},
year = {2016},
month = {1}
}