Testing hydrodynamic descriptions of p+p collisions at $$\sqrt{s}=7$$ s = 7 TeV
Abstract
In high-energy collisions of heavy ions, experimental findings of collective flow are customarily associated with the presence of a thermalized medium expanding according to the laws of hydrodynamics. Recently, the ATLAS, CMS, and ALICE experiments found signals of the same type and magnitude in ultrarelativistic proton-proton collisions. In this study, the state-of-the-art hydrodynamic model SONIC is used to simulate the systems created in p+p collisions. By varying the size of the second-order transport coefficients, the range of applicability of hydrodynamics itself to the systems created in p+p collisions is quantified. It is found that hydrodynamics can give quantitatively reliable results for the particle spectra and the elliptic momentum anisotropy coefficient v2. As a result, using a simple geometric model of the proton based on the elastic form factor leads to results of similar type and magnitude to those found in experiment when allowing for a small bulk viscosity coefficient.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Colorado, Boulder, CO (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- OSTI Identifier:
- 1264788
- Alternate Identifier(s):
- OSTI ID: 1437932
- Grant/Contract Number:
- FG02-97ER41014; SC0008132
- Resource Type:
- Published Article
- Journal Name:
- European Physical Journal. C, Particles and Fields
- Additional Journal Information:
- Journal Name: European Physical Journal. C, Particles and Fields Journal Volume: 76 Journal Issue: 7; Journal ID: ISSN 1434-6044
- Publisher:
- Springer
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Transverse Momentum; Systematic Uncertainty; Bulk Viscosity; Gluon Plasma; Proton Collision
Citation Formats
Habich, M., Miller, G. A., Romatschke, P., and Xiang, W. Testing hydrodynamic descriptions of p+p collisions at $$\sqrt{s}=7$$ s = 7 TeV. Germany: N. p., 2016.
Web. doi:10.1140/epjc/s10052-016-4237-z.
Habich, M., Miller, G. A., Romatschke, P., & Xiang, W. Testing hydrodynamic descriptions of p+p collisions at $$\sqrt{s}=7$$ s = 7 TeV. Germany. doi:10.1140/epjc/s10052-016-4237-z.
Habich, M., Miller, G. A., Romatschke, P., and Xiang, W. Tue .
"Testing hydrodynamic descriptions of p+p collisions at $$\sqrt{s}=7$$ s = 7 TeV". Germany. doi:10.1140/epjc/s10052-016-4237-z.
@article{osti_1264788,
title = {Testing hydrodynamic descriptions of p+p collisions at $$\sqrt{s}=7$$ s = 7 TeV},
author = {Habich, M. and Miller, G. A. and Romatschke, P. and Xiang, W.},
abstractNote = {In high-energy collisions of heavy ions, experimental findings of collective flow are customarily associated with the presence of a thermalized medium expanding according to the laws of hydrodynamics. Recently, the ATLAS, CMS, and ALICE experiments found signals of the same type and magnitude in ultrarelativistic proton-proton collisions. In this study, the state-of-the-art hydrodynamic model SONIC is used to simulate the systems created in p+p collisions. By varying the size of the second-order transport coefficients, the range of applicability of hydrodynamics itself to the systems created in p+p collisions is quantified. It is found that hydrodynamics can give quantitatively reliable results for the particle spectra and the elliptic momentum anisotropy coefficient v2. As a result, using a simple geometric model of the proton based on the elastic form factor leads to results of similar type and magnitude to those found in experiment when allowing for a small bulk viscosity coefficient.},
doi = {10.1140/epjc/s10052-016-4237-z},
journal = {European Physical Journal. C, Particles and Fields},
number = 7,
volume = 76,
place = {Germany},
year = {2016},
month = {7}
}
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1140/epjc/s10052-016-4237-z
DOI: 10.1140/epjc/s10052-016-4237-z
Other availability
Search WorldCat to find libraries that may hold this journal
Cited by: 11 works
Citation information provided by
Web of Science
Web of Science
Figures / Tables:
Fig. 1: Unidentified charged hadron multiplicity (left) and pion mean transverse momentum (right) for p+p collisions at $\sqrt{s}$ = 7 TeV. Shown are experimental results from ALICE and SONIC simulations for proton models based on the proton form factor. The error bars for the SONIC simulations include systematic uncertainties formore »
All figures and tables
(4 total)
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Effect of shear viscosity on spectra, elliptic flow, and Hanbury Brown–Twiss radii
journal, September 2003
- Teaney, Derek
- Physical Review C, Vol. 68, Issue 3
Light-heavy-ion collisions: a window into pre-equilibrium QCD dynamics?
journal, July 2015
- Romatschke, P.
- The European Physical Journal C, Vol. 75, Issue 7
Bulk and shear viscosities of matter created in relativistic heavy-ion collisions
journal, March 2010
- Bożek, Piotr
- Physical Review C, Vol. 81, Issue 3
Radial and elliptic flow at RHIC: further predictions
journal, March 2001
- Huovinen, P.; Kolb, P. F.; Heinz, U.
- Physics Letters B, Vol. 503, Issue 1-2
The PHOBOS perspective on discoveries at RHIC
journal, August 2005
- Back, B. B.; Baker, M. D.; Ballintijn, M.
- Nuclear Physics A, Vol. 757, Issue 1-2
Hadronic dissipative effects on elliptic flow in ultrarelativistic heavy-ion collisions
journal, May 2006
- Hirano, Tetsufumi; Heinz, Ulrich; Kharzeev, Dmitri
- Physics Letters B, Vol. 636, Issue 6
Works referencing / citing this record:
Do nuclear collisions create a locally equilibrated quark–gluon plasma?
journal, January 2017
- Romatschke, P.
- The European Physical Journal C, Vol. 77, Issue 1
Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.