skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Centrality and Transverse Momentum Dependence of Elliptic Flow of Multistrange Hadrons and φ Meson in Au + Au Collisions at s N N = 200 GeV

Journal Article · · Physical Review Letters
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less

In this paper, we present high precision measurements of elliptic flow near midrapidity (|y|<1.0) for multistrange hadrons and φ meson as a function of centrality and transverse momentum in Au+Au collisions at center of mass energy $$\sqrt{sNN}$$=200 GeV. We observe that the transverse momentum dependence of φ and Ωv2 is similar to that of π and p, respectively, which may indicate that the heavier strange quark flows as strongly as the lighter up and down quarks. This observation constitutes a clear piece of evidence for the development of partonic collectivity in heavy-ion collisions at the top RHIC energy. Number of constituent quark scaling is found to hold within statistical uncertainty for both 0%-30% and 30%-80% collision centrality. Finally, there is an indication of the breakdown of previously observed mass ordering between φ and proton v2 at low transverse momentum in the 0%-30% centrality range, possibly indicating late hadronic interactions affecting the proton v2.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
STAR Collaboration
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1459365
Alternate ID(s):
OSTI ID: 1237790
Journal Information:
Physical Review Letters, Vol. 116, Issue 6; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 44 works
Citation information provided by
Web of Science

References (49)

Identified particle production, azimuthal anisotropy, and interferometry measurements in Au + Au collisions at s NN = 9 . 2 GeV journal February 2010
Particle-Type Dependence of Azimuthal Anisotropy and Nuclear Modification of Particle Production in A u + A u Collisions at s N N = 200 G e V journal February 2004
Systematic study of the elliptic flow parameter using a transport approach journal April 2015
Resonance decay effects on anisotropy parameters journal September 2004
Azimuthal Anisotropy of K S 0 and Λ + Λ ¯ Production at Midrapidity from A u + A u Collisions at s N N = 130 G e V journal September 2002
Microscopic models for ultrarelativistic heavy ion collisions journal January 1998
Color Glass Condensate and Glasma journal January 2013
Effects of hadronic rescattering on multistrange hadrons in high-energy nuclear collisions journal October 2015
Azimuthal anisotropy in Au+Au collisions at s NN = 200 GeV journal July 2005
Mass, quark-number, and s NN dependence of the second and fourth flow harmonics in ultrarelativistic nucleus-nucleus collisions journal May 2007
Centrality dependence of charged hadron and strange hadron elliptic flow from s NN = 200 GeV Au+Au collisions journal May 2008
Parton distributions at hadronization from bulk dense matter produced in Au + Au collisions at s NN = 200 GeV journal September 2008
Probe of the QCD phase diagram with φ-mesons in high-energy nuclear collisions journal May 2009
Elliptic Flow at Large Transverse Momenta from Quark Coalescence journal August 2003
Charged and strange hadron elliptic flow in Cu + Cu collisions at s NN = 62.4 and 200 GeV journal April 2010
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
QCD and instantons at finite temperature journal January 1981
Mass ordering of differential elliptic flow and its violation for ϕ mesons journal April 2008
Constituent quark scaling violation due to baryon number transport journal October 2011
Elliptic flow of multi-strange particles: fragmentation, recombination and hydrodynamics journal March 2004
Elliptic flow of ϕ mesons as a sensitive probe for the onset of the deconfinement transition in high energy heavy-ion collisions journal January 2013
Hadronization in Heavy-Ion Collisions: Recombination and Fragmentation of Partons journal May 2003
Evidence of Early Multistrange Hadron Freeze-Out in High Energy Nuclear Collisions journal December 1998
Quantum Optics and Heavy Ion Physics journal August 2006
Partonic Flow and ϕ -Meson Production in Au + Au Collisions at s N N = 200 GeV journal September 2007
Interplay between soft and hard hadronic components for identified hadrons in relativistic heavy ion collisions journal March 2004
Methods for analyzing anisotropic flow in relativistic nuclear collisions journal September 1998
Initial fluctuation effect on harmonic flows in high-energy heavy-ion collisions journal December 2011
Inclusive charged hadron elliptic flow in Au + Au collisions at s N N = 7.7 –39 GeV journal November 2012
Multiphase transport model for relativistic heavy ion collisions journal December 2005
Radial and elliptic flow at RHIC: further predictions journal March 2001
φ -Meson Production as a Probe of the Quark-Gluon Plasma journal March 1985
Elliptic flow of ϕ mesons and strange quark collectivity journal December 2006
Azimuthally sensitive correlations in nucleus-nucleus collisions journal December 2004
Multistrange Baryon Elliptic Flow in Au + Au Collisions at s N N = 200 GeV journal September 2005
Anisotropy as a signature of transverse collective flow journal July 1992
Elliptic flow of identified hadrons in Pb-Pb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV journal June 2015
Color Glass Condensate and Glasma
  • McLerran, Larry
  • PARTICLES AND FIELDS: Proceedings of the VI Latin American Symposium on High Energy Physics and the XII Mexican School of Particles and Fields, AIP Conference Proceedings https://doi.org/10.1063/1.2751960
conference January 2007
Color Glass Condensate and glasma journal March 2011
Mass ordering of differential elliptic flow and its violation for phi mesons text January 2007
Effects of hadronic rescattering on multistrange hadrons in high-energy nuclear collisions text January 2015
Radial and elliptic flow at RHIC: further predictions text January 2001
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
Mass, quark-number, and $\sqrt{s_{NN}}$ dependence of the second and fourth flow harmonics in ultra-relativistic nucleus-nucleus collisions text January 2007
Hadronization in heavy ion collisions: Recombination and fragmentation of partons text January 2003
Elliptic flow at large transverse momenta from quark coalescence text January 2003
Interplay between soft and hard hadronic components for identified hadrons in relativistic heavy ion collisions text January 2003
Elliptic flow of multi-strange particles: fragmentation, recombination and hydrodynamics text January 2003
Resonance decay effects on anisotropy parameters text January 2004

Cited By (11)

Ω and ϕ production in Au + Au collisions at $$\sqrt{s_{_\mathrm{NN}}} = 11.5$$ s NN = 11.5   and 7.7 GeV in a dynamical quark coalescence model journal March 2018
Charm hadron azimuthal angular correlations in Au + Au collisions at $$\sqrt{s_{\mathrm{NN}}} = 200$$ GeV from parton scatterings journal November 2019
Ω and ϕ in Au + Au collisions at and 11.5 GeV from a multiphase transport model journal August 2017
Squeezed back-to-back correlations of bosons with nonzero widths in relativistic heavy-ion collisions journal July 2019
Elliptic flow of light nuclei journal May 2017
A Review of Elliptic Flow of Light Nuclei in Heavy-Ion Collisions at RHIC and LHC Energies journal January 2017
Elliptic Flow of Identified Particles in Pb–Pb Collisions at s NN = 5.02 TeV journal January 2020
Centrality and transverse momentum dependence of D0 -meson production at mid-rapidity in Au + Au collisions at s NN =200 GeV text January 2019
A Review of Elliptic Flow of Light Nuclei in Heavy-Ion Collisions at RHIC and LHC Energies preprint January 2017
Squeezed back-to-back correlations of bosons with nonzero widths in relativistic heavy-ion collisions text January 2019
Feed-down effect on $Λ$ spin polarization text January 2019


Figures / Tables (5)