Eccentricity and elliptic flow in proton-proton collisions from parton evolution
(2011) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 702(5). p.394-397- Abstract
- It has been argued that high-multiplicity proton-proton collisions at the LHC may exhibit collective phenomena usually studied in the context of heavy-ion collisions, such as elliptic flow. We study this issue using DIPSY-a Monte Carlo event generator based on the QCD dipole model. We calculate the eccentricity of the transverse area defined by the spatial distribution of produced gluons. The resulting elliptic flow is estimated to be about 6%, comparable to the value in nucleus-nucleus collisions at RHIC and the LHC. Experimentally, elliptic flow is inferred from the azimuthal correlation between hadrons, which receives contributions from collective flow, and from various other effects referred to as "nonflow". We discuss how to identify... (More)
- It has been argued that high-multiplicity proton-proton collisions at the LHC may exhibit collective phenomena usually studied in the context of heavy-ion collisions, such as elliptic flow. We study this issue using DIPSY-a Monte Carlo event generator based on the QCD dipole model. We calculate the eccentricity of the transverse area defined by the spatial distribution of produced gluons. The resulting elliptic flow is estimated to be about 6%, comparable to the value in nucleus-nucleus collisions at RHIC and the LHC. Experimentally, elliptic flow is inferred from the azimuthal correlation between hadrons, which receives contributions from collective flow, and from various other effects referred to as "nonflow". We discuss how to identify in experiments the signal of flow in the presence of large nonflow effects. (C) 2011 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2186689
- author
- Avsar, Emil ; Flensburg, Christoffer LU ; Hatta, Yoshitaka ; Ollitrault, Jean-Yves and Ueda, Takahiro
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
- volume
- 702
- issue
- 5
- pages
- 394 - 397
- publisher
- Elsevier
- external identifiers
-
- wos:000294593700013
- scopus:80051576509
- ISSN
- 0370-2693
- DOI
- 10.1016/j.physletb.2011.07.031
- language
- English
- LU publication?
- yes
- id
- 6456c3b3-5f0a-452d-b415-58a9c00afda1 (old id 2186689)
- date added to LUP
- 2016-04-01 14:42:03
- date last changed
- 2024-01-10 07:28:20
@article{6456c3b3-5f0a-452d-b415-58a9c00afda1, abstract = {{It has been argued that high-multiplicity proton-proton collisions at the LHC may exhibit collective phenomena usually studied in the context of heavy-ion collisions, such as elliptic flow. We study this issue using DIPSY-a Monte Carlo event generator based on the QCD dipole model. We calculate the eccentricity of the transverse area defined by the spatial distribution of produced gluons. The resulting elliptic flow is estimated to be about 6%, comparable to the value in nucleus-nucleus collisions at RHIC and the LHC. Experimentally, elliptic flow is inferred from the azimuthal correlation between hadrons, which receives contributions from collective flow, and from various other effects referred to as "nonflow". We discuss how to identify in experiments the signal of flow in the presence of large nonflow effects. (C) 2011 Elsevier B.V. All rights reserved.}}, author = {{Avsar, Emil and Flensburg, Christoffer and Hatta, Yoshitaka and Ollitrault, Jean-Yves and Ueda, Takahiro}}, issn = {{0370-2693}}, language = {{eng}}, number = {{5}}, pages = {{394--397}}, publisher = {{Elsevier}}, series = {{Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics}}, title = {{Eccentricity and elliptic flow in proton-proton collisions from parton evolution}}, url = {{http://dx.doi.org/10.1016/j.physletb.2011.07.031}}, doi = {{10.1016/j.physletb.2011.07.031}}, volume = {{702}}, year = {{2011}}, }