Long-range collectivity in small collision systems with two- and four-particle correlations at STAR

Huang, Shengli

doi:10.1016/j.nuclphysa.2018.09.072

Title: Long-range collectivity in small collision systems with two- and four-particle correlations at STAR

Abstract

New STAR measurements of two- and four-particle (c₂{4}) azimuthal angle correlations are reported for p+Au collisions at 200 GeV and d+Au collisions from 19.6 to 200 GeV. A negative c₂{4}, consistent with collective anisotropic flow, is observed in high multiplicity d+Au events at 62.4 and 200 GeV where the statistical significance of the data allows an analysis. A template fitting method, employed to subtract non-flow contributions to the two-particle correlations, allows the extraction of the anisotropy coefficients (ν₂) for these systems at their respective energies. The ν₂ results for different energies show a common dependence on the charged particle multiplicity density ( < dN_ch/dη > ), which provide important insight on the nature of collective behavior in small collision systems.

Authors:

Huang, Shengli ^[1]

Stony Brook Univ., Stony Brook, NY (United States)

Publication Date:: Tue Jan 22 00:00:00 EST 2019

Research Org.:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

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

Contributing Org.:: STAR Collaboration

OSTI Identifier:: 1580365

Grant/Contract Number:: AC02-05CH11231; FG02-87ER40331

Resource Type:: Accepted Manuscript

Journal Name:: Nuclear Physics. A

Additional Journal Information:: Journal Volume: 982; Journal Issue: C; Journal ID: ISSN 0375-9474

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; two- and four-particle azimuthal angular correlations; ridge; anisotropic flow; cumulant

Citation Formats


                    Huang, Shengli. Long-range collectivity in small collision systems with two- and four-particle correlations at STAR.  United States: N. p., 2019. 
Web.  doi:10.1016/j.nuclphysa.2018.09.072.

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                    Huang, Shengli. Long-range collectivity in small collision systems with two- and four-particle correlations at STAR.  United States.  https://doi.org/10.1016/j.nuclphysa.2018.09.072

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                    Huang, Shengli. Tue .  
"Long-range collectivity in small collision systems with two- and four-particle correlations at STAR".  United States.  https://doi.org/10.1016/j.nuclphysa.2018.09.072.  https://www.osti.gov/servlets/purl/1580365.

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@article{osti_1580365,

  title        = {Long-range collectivity in small collision systems with two- and four-particle correlations at STAR},

  author       = {Huang, Shengli},

  abstractNote = {New STAR measurements of two- and four-particle (c2{4}) azimuthal angle correlations are reported for p+Au collisions at 200 GeV and d+Au collisions from 19.6 to 200 GeV. A negative c2{4}, consistent with collective anisotropic flow, is observed in high multiplicity d+Au events at 62.4 and 200 GeV where the statistical significance of the data allows an analysis. A template fitting method, employed to subtract non-flow contributions to the two-particle correlations, allows the extraction of the anisotropy coefficients (ν2) for these systems at their respective energies. The ν2 results for different energies show a common dependence on the charged particle multiplicity density ( < dNch/dη > ), which provide important insight on the nature of collective behavior in small collision systems.},

  doi          = {10.1016/j.nuclphysa.2018.09.072},

  journal      = {Nuclear Physics. A},

  number       = C,

  volume       = 982,

  place        = {United States},

  year         = {Tue Jan 22 00:00:00 EST 2019},

  month        = {Tue Jan 22 00:00:00 EST 2019}

}

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https://doi.org/10.1016/j.nuclphysa.2018.09.072

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Works referenced in this record:

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Works referencing / citing this record:

Influence of initial-state momentum anisotropy on the final-state collectivity in small collision systems
journal, December 2019

Nie, Maowu; Yi, Li; Luo, Xiaofeng
Physical Review C, Vol. 100, Issue 6
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text, January 2019

Nie, Maowu; Yi, Li; Jia, Jiangyong
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Title: Long-range collectivity in small collision systems with two- and four-particle correlations at STAR

Abstract

Citation Formats

Observation of long-range, near-side angular correlations in pPb collisions at the LHC journal, January 2013

Multiplicity and transverse momentum dependence of two- and four-particle correlations in pPb and PbPb collisions journal, July 2013

Long-range pseudorapidity dihadron correlations in d+ Au collisions at s NN = 200 GeV journal, July 2015

Measurement of Long-Range Angular Correlation and Quadrupole Anisotropy of Pions and (Anti)Protons in Central d + Au Collisions at s N N = 200 GeV journal, May 2015

Measurements of Elliptic and Triangular Flow in High-Multiplicity He 3 + Au Collisions at s N N = 200 GeV journal, September 2015

Azimuthal Collimation of Long Range Rapidity Correlations by Strong Color Fields in High Multiplicity Hadron-Hadron Collisions journal, June 2012

Hierarchy of Azimuthal Anisotropy Harmonics in Collisions of Small Systems from the Color Glass Condensate journal, July 2018

Eccentricity and elliptic flow in proton–proton collisions from parton evolution journal, August 2011

“Ridge” in Proton-Proton Scattering at 7 TeV journal, March 2011

Elliptic and triangular flow anisotropy in deuteron-gold collisions at s N N = 200 GeV at RHIC and in proton-lead collisions at s N N = 5.02 TeV at the LHC journal, April 2014

Generic framework for anisotropic flow analyses with multiparticle azimuthal correlations journal, June 2014

Flow analysis from multiparticle azimuthal correlations journal, September 2001

Exploiting Intrinsic Triangular Geometry in Relativistic He 3 + Au Collisions to Disentangle Medium Properties journal, September 2014

Effect of event selection on jetlike correlation measurement in d+ Au collisions at s NN = 200 GeV journal, April 2015

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

Evidence for collectivity in pp collisions at the LHC journal, February 2017

Influence of initial-state momentum anisotropy on the final-state collectivity in small collision systems journal, December 2019

Examination of Flow and Non-Flow Factorization Methods in Small Collision Systems text, January 2019

Influence of initial-state momentum anisotropy on the final-state collectivity in small collision systems text, January 2019

Observation of long-range, near-side angular correlations in pPb collisions at the LHC
journal, January 2013

Multiplicity and transverse momentum dependence of two- and four-particle correlations in pPb and PbPb collisions
journal, July 2013

Long-range pseudorapidity dihadron correlations in d+ Au collisions at $\sqrt{s_{NN}} = 200 GeV$
journal, July 2015

Measurement of Long-Range Angular Correlation and Quadrupole Anisotropy of Pions and (Anti)Protons in Central $d + Au$ Collisions at $\sqrt{s_{N N}} = 200$ GeV
journal, May 2015

Measurements of Elliptic and Triangular Flow in High-Multiplicity ${}^{3}{He} + Au$ Collisions at $\sqrt{s_{N N}} = 200 GeV$
journal, September 2015

Azimuthal Collimation of Long Range Rapidity Correlations by Strong Color Fields in High Multiplicity Hadron-Hadron Collisions
journal, June 2012

Hierarchy of Azimuthal Anisotropy Harmonics in Collisions of Small Systems from the Color Glass Condensate
journal, July 2018

Eccentricity and elliptic flow in proton–proton collisions from parton evolution
journal, August 2011

“Ridge” in Proton-Proton Scattering at 7 TeV
journal, March 2011

Elliptic and triangular flow anisotropy in deuteron-gold collisions at $\sqrt{s_{N N}} = 200$ GeV at RHIC and in proton-lead collisions at $\sqrt{s_{N N}} = 5.02$ TeV at the LHC
journal, April 2014

Generic framework for anisotropic flow analyses with multiparticle azimuthal correlations
journal, June 2014

Flow analysis from multiparticle azimuthal correlations
journal, September 2001

Exploiting Intrinsic Triangular Geometry in Relativistic ${}^{3}{He} + Au$ Collisions to Disentangle Medium Properties
journal, September 2014

Effect of event selection on jetlike correlation measurement in d+ Au collisions at $\sqrt{s_{NN}} = 200 GeV$
journal, April 2015

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

Evidence for collectivity in pp collisions at the LHC
journal, February 2017

Influence of initial-state momentum anisotropy on the final-state collectivity in small collision systems
journal, December 2019

Examination of Flow and Non-Flow Factorization Methods in Small Collision Systems
text, January 2019

Influence of initial-state momentum anisotropy on the final-state collectivity in small collision systems
text, January 2019