Fluctuating flow angles and anisotropic flow measurements

Heinz, Ulrich; Qiu, Zhi; Shen, Chun

doi:10.1103/PhysRevC.87.034913

Title: Fluctuating flow angles and anisotropic flow measurements

Abstract

Event-by-event fluctuations in the initial density distributions of the fireballs created in relativistic heavy-ion collisions lead to event-by-event fluctuations of the final anisotropic flow angles, and density inhomogeneities in the initial state cause these flow angles to vary with the transverse momentum of the emitted particles. It is shown that these effects lead to characteristically different transverse momentum dependencies for anisotropic flow coefficients extracted from different experimental methods. Finally, these differences can be used to experimentally constrain flow angle fluctuations in the final state of heavy-ion collisions which, in turn, are sensitive to the initial-state density fluctuations and the shear viscosity of the expanding fireball medium.

Authors:

^[1]; Qiu, Zhi ^[1]; Shen, Chun ^[1]

The Ohio State Univ., Columbus, OH (United States). Dept. of Physics

Publication Date:: Fri Mar 29 00:00:00 EDT 2013

Research Org.:: The Ohio State Univ., Columbus, OH (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1604551

Alternate Identifier(s):: OSTI ID: 1103990

Grant/Contract Number:: SC0004286; SC0004104

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C, Nuclear Physics

Additional Journal Information:: Journal Volume: 87; Journal Issue: 3; Journal ID: ISSN 0556-2813

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Heinz, Ulrich, Qiu, Zhi, and Shen, Chun. Fluctuating flow angles and anisotropic flow measurements.  United States: N. p., 2013. 
Web.  doi:10.1103/PhysRevC.87.034913.

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                    Heinz, Ulrich, Qiu, Zhi, & Shen, Chun. Fluctuating flow angles and anisotropic flow measurements.  United States.  https://doi.org/10.1103/PhysRevC.87.034913

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                    Heinz, Ulrich, Qiu, Zhi, and Shen, Chun. Fri .  
"Fluctuating flow angles and anisotropic flow measurements".  United States.  https://doi.org/10.1103/PhysRevC.87.034913.  https://www.osti.gov/servlets/purl/1604551.

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@article{osti_1604551,

  title        = {Fluctuating flow angles and anisotropic flow measurements},

  author       = {Heinz, Ulrich and Qiu, Zhi and Shen, Chun},

  abstractNote = {Event-by-event fluctuations in the initial density distributions of the fireballs created in relativistic heavy-ion collisions lead to event-by-event fluctuations of the final anisotropic flow angles, and density inhomogeneities in the initial state cause these flow angles to vary with the transverse momentum of the emitted particles. It is shown that these effects lead to characteristically different transverse momentum dependencies for anisotropic flow coefficients extracted from different experimental methods. Finally, these differences can be used to experimentally constrain flow angle fluctuations in the final state of heavy-ion collisions which, in turn, are sensitive to the initial-state density fluctuations and the shear viscosity of the expanding fireball medium.},

  doi          = {10.1103/PhysRevC.87.034913},

  journal      = {Physical Review C, Nuclear Physics},

  number       = 3,

  volume       = 87,

  place        = {United States},

  year         = {Fri Mar 29 00:00:00 EDT 2013},

  month        = {Fri Mar 29 00:00:00 EDT 2013}

}

Copy to clipboard

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Title: Fluctuating flow angles and anisotropic flow measurements

Abstract

Citation Formats

New method for measuring azimuthal distributions in nucleus-nucleus collisions journal, April 2001

Centrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at $\sqrt{s_{NN}}= 2.76\ \mbox{TeV}$ journal, May 2012

Radial and elliptic flow in Pb + Pb collisions at energies available at the CERN Large Hadron Collider from viscous hydrodynamics journal, October 2011

Nonlinearities in the harmonic spectrum of heavy ion collisions with ideal and viscous hydrodynamics journal, October 2012

Elliptic flow in the Gaussian model of eccentricity fluctuations journal, January 2008

Quark–gluon plasma and color glass condensate at RHIC? The perspective from the BRAHMS experiment journal, August 2005

Non-flow correlations and elliptic flow fluctuations in Au + Au collisions at s NN = 200 GeV journal, March 2010

Collective Flow and Viscosity in Relativistic Heavy-Ion Collisions journal, October 2013

Experimental and theoretical challenges in the search for the quark–gluon plasma: The STAR Collaboration's critical assessment of the evidence from RHIC collisions journal, August 2005

The PHOBOS perspective on discoveries at RHIC journal, August 2005

Event-by-event shape and flow fluctuations of relativistic heavy-ion collision fireballs journal, August 2011

Flow analysis from multiparticle azimuthal correlations journal, September 2001

Formation of dense partonic matter in relativistic nucleus–nucleus collisions at RHIC: Experimental evaluation by the PHENIX Collaboration journal, August 2005

Flow fluctuations and long-range correlations: elliptic flow and beyond journal, November 2011

Directed Flow at Midrapidity in s N N = 2.76 TeV Pb + Pb Collisions journal, June 2012

Mapping the hydrodynamic response to the initial geometry in heavy-ion collisions journal, February 2012

Early thermalization at RHIC journal, May 2002

Importance of correlations and fluctuations on the initial source eccentricity in high-energy nucleus-nucleus collisions journal, January 2008

The viscosity of quark-gluon plasma at RHIC and the LHC conference, January 2012

Methods for analyzing anisotropic flow in relativistic nuclear collisions journal, September 1998

Effect of flow fluctuations and nonflow on elliptic flow methods journal, July 2009

Measurement of the azimuthal anisotropy for charged particle production in s N N = 2.76 TeV lead-lead collisions with the ATLAS detector journal, July 2012

Triangularity and dipole asymmetry in relativistic heavy ion collisions journal, June 2011

Flow analysis with cumulants: Direct calculations journal, April 2011

Effect of flow fluctuations and nonflow on elliptic flow methods journal, November 2009

Centrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at root s(NN)=2.76 TeV text, January 2012

Elliptic flow in the Gaussian model of eccentricity fluctuations text, January 2007

The Importance of Correlations and Fluctuations on the Initial Source Eccentricity in High-Energy Nucleus-Nucleus Collisions text, January 2007

Flow analysis with cumulants: direct calculations text, January 2010

Flow fluctuations and long-range correlations: elliptic flow and beyond text, January 2011

Hydrodynamic elliptic and triangular flow in Pb-Pb collisions at sqrt(s)=2.76ATeV text, January 2011

Mapping the hydrodynamic response to the initial geometry in heavy-ion collisions text, January 2011

Centrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at sqrt(s[NN]) = 2.76 TeV text, January 2012

Non linearities in the harmonic spectrum of heavy ion collisions with ideal and viscous hydrodynamics text, January 2012

Hydrodynamic event-plane correlations in Pb+Pb collisions at sqrt(s)=2.76ATeV text, January 2012

Collective flow and viscosity in relativistic heavy-ion collisions text, January 2013

Early thermalization at RHIC text, January 2001

Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration text, January 2004

Experimental and Theoretical Challenges in the Search for the Quark Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence from RHIC Collisions text, January 2005

Flow analysis from multiparticle azimuthal correlations text, January 2001

Pseudorapidity and transverse momentum dependence of flow harmonics in p Pb and PbPb collisions journal, October 2018

Collective flow in 2.76 and 5.02 A TeV Pb + Pb collisions journal, September 2017

Pseudorapidity and transverse momentum dependence of flow harmonics in pPb and PbPb collisions text, January 2017

Principal-component analysis of two-particle azimuthal correlations in PbPb and pPb collisions at CMS text, January 2017

Event-shape fluctuations and flow correlations in ultra-relativistic heavy-ion collisions journal, November 2014

Collective flow and hydrodynamics in large and small systems at the LHC journal, June 2017

p T -dependent particle number fluctuations from principal-component analyses in hydrodynamic simulations of heavy-ion collisions journal, November 2019

Higher harmonics of azimuthal anisotropy in relativistic heavy-ion collisions in HYDJET++ model journal, March 2014

Measurement of long-range pseudorapidity correlations and azimuthal harmonics in s N N = 5.02 TeV proton-lead collisions with the ATLAS detector journal, October 2014

Sub-leading flow modes in PbPb collisions at from the HYDJET++ model journal, June 2017

Effects of initial-state dynamics on collective flow within a coupled transport and viscous hydrodynamic approach journal, March 2018

Evidence for transverse-momentum- and pseudorapidity-dependent event-plane fluctuations in PbPb and pPb collisions text, January 2015

Principal-component analysis of two-particle azimuthal correlations in PbPb and $p\text{Pb}$ collisions at CMS text, January 2017

Principal-component analysis of two-particle azimuthal correlations in PbPb and pPb collisions at CMS text, January 2017

Pseudorapidity and transverse momentum dependence of flow harmonics in p Pb and PbPb collisions text, January 2018

Higher harmonics of azimuthal anisotropy in relativistic heavy ion collisions in HYDJET++ model text, January 2013

Event-shape fluctuations and flow correlations in ultra-relativistic heavy-ion collisions text, January 2014

Subleading harmonic flows in hydrodynamic simulations of heavy ion collisions text, January 2015

Novel Collective Phenomena in High-Energy Proton-Proton and Proton-Nucleus Collisions text, January 2015

$p_T$-Dependent Particle Number Fluctuations From Principal Component Analyses in Hydrodynamic Simulations of Heavy-Ion Collisions text, January 2019

New method for measuring azimuthal distributions in nucleus-nucleus collisions
journal, April 2001

Centrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at $\sqrt{s_{NN}}= 2.76\ \mbox{TeV}$
journal, May 2012

Radial and elliptic flow in Pb $+$ Pb collisions at energies available at the CERN Large Hadron Collider from viscous hydrodynamics
journal, October 2011

Nonlinearities in the harmonic spectrum of heavy ion collisions with ideal and viscous hydrodynamics
journal, October 2012

Elliptic flow in the Gaussian model of eccentricity fluctuations
journal, January 2008

Quark–gluon plasma and color glass condensate at RHIC? The perspective from the BRAHMS experiment
journal, August 2005

Non-flow correlations and elliptic flow fluctuations in $Au + Au$ collisions at $\sqrt{s_{NN}} = 200$ GeV
journal, March 2010

Collective Flow and Viscosity in Relativistic Heavy-Ion Collisions
journal, October 2013

Experimental and theoretical challenges in the search for the quark–gluon plasma: The STAR Collaboration's critical assessment of the evidence from RHIC collisions
journal, August 2005

The PHOBOS perspective on discoveries at RHIC
journal, August 2005

Event-by-event shape and flow fluctuations of relativistic heavy-ion collision fireballs
journal, August 2011

Flow analysis from multiparticle azimuthal correlations
journal, September 2001

Formation of dense partonic matter in relativistic nucleus–nucleus collisions at RHIC: Experimental evaluation by the PHENIX Collaboration
journal, August 2005

Flow fluctuations and long-range correlations: elliptic flow and beyond
journal, November 2011

Directed Flow at Midrapidity in $\sqrt{s_{N N}} = 2.76 TeV$ $Pb + Pb$ Collisions
journal, June 2012

Mapping the hydrodynamic response to the initial geometry in heavy-ion collisions
journal, February 2012

Early thermalization at RHIC
journal, May 2002

Importance of correlations and fluctuations on the initial source eccentricity in high-energy nucleus-nucleus collisions
journal, January 2008

The viscosity of quark-gluon plasma at RHIC and the LHC
conference, January 2012

Methods for analyzing anisotropic flow in relativistic nuclear collisions
journal, September 1998

Effect of flow fluctuations and nonflow on elliptic flow methods
journal, July 2009

Measurement of the azimuthal anisotropy for charged particle production in $\sqrt{s_{N N}} = 2.76$ TeV lead-lead collisions with the ATLAS detector
journal, July 2012

Triangularity and dipole asymmetry in relativistic heavy ion collisions
journal, June 2011

Flow analysis with cumulants: Direct calculations
journal, April 2011

Effect of flow fluctuations and nonflow on elliptic flow methods
journal, November 2009

Centrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at root s(NN)=2.76 TeV
text, January 2012

Elliptic flow in the Gaussian model of eccentricity fluctuations
text, January 2007

The Importance of Correlations and Fluctuations on the Initial Source Eccentricity in High-Energy Nucleus-Nucleus Collisions
text, January 2007

Flow analysis with cumulants: direct calculations
text, January 2010

Flow fluctuations and long-range correlations: elliptic flow and beyond
text, January 2011

Hydrodynamic elliptic and triangular flow in Pb-Pb collisions at sqrt(s)=2.76ATeV
text, January 2011

Mapping the hydrodynamic response to the initial geometry in heavy-ion collisions
text, January 2011

Centrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
text, January 2012

Non linearities in the harmonic spectrum of heavy ion collisions with ideal and viscous hydrodynamics
text, January 2012

Hydrodynamic event-plane correlations in Pb+Pb collisions at sqrt(s)=2.76ATeV
text, January 2012

Collective flow and viscosity in relativistic heavy-ion collisions
text, January 2013

Early thermalization at RHIC
text, January 2001

Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration
text, January 2004

Experimental and Theoretical Challenges in the Search for the Quark Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence from RHIC Collisions
text, January 2005

Flow analysis from multiparticle azimuthal correlations
text, January 2001

Pseudorapidity and transverse momentum dependence of flow harmonics in $p Pb$ and PbPb collisions
journal, October 2018

Collective flow in 2.76 and 5.02 A TeV Pb + Pb collisions
journal, September 2017

Pseudorapidity and transverse momentum dependence of flow harmonics in pPb and PbPb collisions
text, January 2017

Principal-component analysis of two-particle azimuthal correlations in PbPb and pPb collisions at CMS
text, January 2017

Event-shape fluctuations and flow correlations in ultra-relativistic heavy-ion collisions
journal, November 2014

Collective flow and hydrodynamics in large and small systems at the LHC
journal, June 2017

$p_{T}$ -dependent particle number fluctuations from principal-component analyses in hydrodynamic simulations of heavy-ion collisions
journal, November 2019

Higher harmonics of azimuthal anisotropy in relativistic heavy-ion collisions in HYDJET++ model
journal, March 2014

Measurement of long-range pseudorapidity correlations and azimuthal harmonics in $\sqrt{s_{N N}} = 5.02$ TeV proton-lead collisions with the ATLAS detector
journal, October 2014

Sub-leading flow modes in PbPb collisions at from the HYDJET++ model
journal, June 2017

Effects of initial-state dynamics on collective flow within a coupled transport and viscous hydrodynamic approach
journal, March 2018

Evidence for transverse-momentum- and pseudorapidity-dependent event-plane fluctuations in PbPb and pPb collisions
text, January 2015

Principal-component analysis of two-particle azimuthal correlations in PbPb and $p\text{Pb}$ collisions at CMS
text, January 2017

Principal-component analysis of two-particle azimuthal correlations in PbPb and pPb collisions at CMS
text, January 2017

Pseudorapidity and transverse momentum dependence of flow harmonics in p Pb and PbPb collisions
text, January 2018

Higher harmonics of azimuthal anisotropy in relativistic heavy ion collisions in HYDJET++ model
text, January 2013

Event-shape fluctuations and flow correlations in ultra-relativistic heavy-ion collisions
text, January 2014

Subleading harmonic flows in hydrodynamic simulations of heavy ion collisions
text, January 2015

Novel Collective Phenomena in High-Energy Proton-Proton and Proton-Nucleus Collisions
text, January 2015

$p_T$-Dependent Particle Number Fluctuations From Principal Component Analyses in Hydrodynamic Simulations of Heavy-Ion Collisions
text, January 2019