Azimuthal anisotropy in U+U collisions at STAR
Abstract
The azimuthal anisotropy of particle production is commonly used in high-energy nuclear collisions to study the early evolution of the expanding system. The prolate shape of uranium nuclei makes it possible to study how the geometry of the colliding nuclei affects final state anisotropies. It also provides a unique opportunity to understand how entropy is produced in heavy ion collisions. In this paper, the two- and four- particle cumulant v2 (v2{2} and v2{4}) from U+U collisions at √sNN = 193 GeV and Au+Au collisions at √sNN = 200 GeV for inclusive charged hadrons will be presented. The STAR Zero Degree Calorimeters are used to select very central collisions. Differences were observed between the multiplicity dependence of v2{2} for most central Au+Au and U+U collisions. The multiplicity dependence of v2{2} in central collisions were compared to Monte Carlo Glauber model predictions and it was seen that this model cannot explain the present results. (auth)
- Authors:
-
- et al.
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Contributing Org.:
- STAR Collaboration
- OSTI Identifier:
- 1174122
- Report Number(s):
- BNL-107560-2015-JA
Journal ID: ISSN 0375-9474; R&D Project: PO 004; KB0202012
- Grant/Contract Number:
- SC00112704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Physics. A
- Additional Journal Information:
- Journal Volume: 932; Journal Issue: 1-2; Journal ID: ISSN 0375-9474
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; relativistic heavy ion collider
Citation Formats
Wang, Hui, and Sorensen, Paul. Azimuthal anisotropy in U+U collisions at STAR. United States: N. p., 2014.
Web. doi:10.1016/j.nuclphysa.2014.09.111.
Wang, Hui, & Sorensen, Paul. Azimuthal anisotropy in U+U collisions at STAR. United States. https://doi.org/10.1016/j.nuclphysa.2014.09.111
Wang, Hui, and Sorensen, Paul. Mon .
"Azimuthal anisotropy in U+U collisions at STAR". United States. https://doi.org/10.1016/j.nuclphysa.2014.09.111. https://www.osti.gov/servlets/purl/1174122.
@article{osti_1174122,
title = {Azimuthal anisotropy in U+U collisions at STAR},
author = {Wang, Hui and Sorensen, Paul},
abstractNote = {The azimuthal anisotropy of particle production is commonly used in high-energy nuclear collisions to study the early evolution of the expanding system. The prolate shape of uranium nuclei makes it possible to study how the geometry of the colliding nuclei affects final state anisotropies. It also provides a unique opportunity to understand how entropy is produced in heavy ion collisions. In this paper, the two- and four- particle cumulant v2 (v2{2} and v2{4}) from U+U collisions at √sNN = 193 GeV and Au+Au collisions at √sNN = 200 GeV for inclusive charged hadrons will be presented. The STAR Zero Degree Calorimeters are used to select very central collisions. Differences were observed between the multiplicity dependence of v2{2} for most central Au+Au and U+U collisions. The multiplicity dependence of v2{2} in central collisions were compared to Monte Carlo Glauber model predictions and it was seen that this model cannot explain the present results. (auth)},
doi = {10.1016/j.nuclphysa.2014.09.111},
journal = {Nuclear Physics. A},
number = 1-2,
volume = 932,
place = {United States},
year = {Mon Oct 06 00:00:00 EDT 2014},
month = {Mon Oct 06 00:00:00 EDT 2014}
}
Web of Science
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