Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models
Abstract
We trace the development of azimuthal anisotropy (vn, n = 2, 3) via parton-parton collision history in two transport models. The parton vn is studied as a function of the number of collisions of each parton in Au+Au and d+Au collisions at √ sNN = 200 GeV. Findings show that the majority of vn comes from the anisotropic escape probability of partons, with no fundamental difference at low and high transverse momenta. The contribution to vn from hydrodynamic-type collective flow is found to be small. Only when the parton-parton cross-section is set unrealistically large does this contribution start to take over. Our findings challenge the current paradigm emerged from hydrodynamic comparisons to anisotropy data.
- Authors:
- Publication Date:
- Research Org.:
- Purdue Univ., West Lafayette, IN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1234183
- Alternate Identifier(s):
- OSTI ID: 1242352
- Grant/Contract Number:
- FG02-88ER40412; FG02-13ER16413
- Resource Type:
- Journal Article: Published Article
- Journal Name:
- Physics Letters B
- Additional Journal Information:
- Journal Name: Physics Letters B Journal Volume: 753 Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; quark-gluon plasma; anisotropic flow; transport model; hydrodynamics
Citation Formats
He, Liang, Edmonds, Terrence, Lin, Zi-Wei, Liu, Feng, Molnar, Denes, and Wang, Fuqiang. Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models. Netherlands: N. p., 2016.
Web. doi:10.1016/j.physletb.2015.12.051.
He, Liang, Edmonds, Terrence, Lin, Zi-Wei, Liu, Feng, Molnar, Denes, & Wang, Fuqiang. Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models. Netherlands. https://doi.org/10.1016/j.physletb.2015.12.051
He, Liang, Edmonds, Terrence, Lin, Zi-Wei, Liu, Feng, Molnar, Denes, and Wang, Fuqiang. 2016.
"Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models". Netherlands. https://doi.org/10.1016/j.physletb.2015.12.051.
@article{osti_1234183,
title = {Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models},
author = {He, Liang and Edmonds, Terrence and Lin, Zi-Wei and Liu, Feng and Molnar, Denes and Wang, Fuqiang},
abstractNote = {We trace the development of azimuthal anisotropy (vn, n = 2, 3) via parton-parton collision history in two transport models. The parton vn is studied as a function of the number of collisions of each parton in Au+Au and d+Au collisions at √ sNN = 200 GeV. Findings show that the majority of vn comes from the anisotropic escape probability of partons, with no fundamental difference at low and high transverse momenta. The contribution to vn from hydrodynamic-type collective flow is found to be small. Only when the parton-parton cross-section is set unrealistically large does this contribution start to take over. Our findings challenge the current paradigm emerged from hydrodynamic comparisons to anisotropy data.},
doi = {10.1016/j.physletb.2015.12.051},
url = {https://www.osti.gov/biblio/1234183},
journal = {Physics Letters B},
issn = {0370-2693},
number = C,
volume = 753,
place = {Netherlands},
year = {Mon Feb 01 00:00:00 EST 2016},
month = {Mon Feb 01 00:00:00 EST 2016}
}
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Publisher's Version of Record at https://doi.org/10.1016/j.physletb.2015.12.051
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Cited by: 92 works
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