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Title: Strange hadron production in Au + Au collisions at s N N = 7.7 , 11.5, 19.6, 27, and 39 GeV

Journal Article · · Physical Review. C
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We present STAR measurements of strange hadron ( K S 0 , Λ , Λ ¯ , Ξ - , Ξ ¯ + , Ω - , Ω ¯ + , and Φ ) production at midrapidity ( | y | < 0.5 ) in Au + Au collisions at s N N = 7.7–39 GeV from the Beam Energy Scan Program at the Relativistic Heavy Ion Collider (RHIC). Transverse-momentum spectra, averaged transverse mass, and the overall integrated yields of these strange hadrons are presented versus the centrality and collision energy. Antibaryon-to-baryon ratios ( Λ ¯ / Λ , Ξ ¯ + / Ξ - , Ω ¯ + / Ω - ) are presented as well and used to test a thermal statistical model and to extract the temperature normalized strangeness and baryon chemical potentials at hadronic freeze-out ( μ B / T ch and μ S / T ch ) in central collisions. Strange baryon-to-pion ratios are compared to various model predictions in central collisions for all energies. The nuclear modification factors ( R CP ) and antibaryon-to-meson ratios as a function of transverse momentum are presented for all collision energies. The K S 0 R CP shows no suppression for p T up to 3.5 GeV / c at energies of 7.7 and 11.5 GeV. The Λ ¯ / K S 0 ratio also shows baryon-to-meson enhancement at intermediate p T ( 2.5 GeV / c ) in central collisions at energies above 19.6 GeV. Finally, both observations suggest that there is likely a change of the underlying strange quark dynamics at collision energies below 19.6 GeV.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Texas A & M Univ., College Station, TX (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
STAR Collaboration
Grant/Contract Number:
SC0012704; SC0015636; AC02-05CH11231
OSTI ID:
1644012
Alternate ID(s):
OSTI ID: 1529065; OSTI ID: 1713251; OSTI ID: 1787636
Report Number(s):
BNL-216203-2020-JAAM; BNL-211792-2019-JAAM; TRN: US2201987
Journal Information:
Physical Review. C, Vol. 102, Issue 3; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (86)

Energy dependence of <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msup><mml:mi>π</mml:mi><mml:mo>±</mml:mo></mml:msup></mml:math>, p and <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math> transverse momentum spectra for <mml:math altimg="si3.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi mathvariant="normal">Au</mml:mi><mml:mo>+</mml:mo><mml:mi mathvariant="normal">Au</mml:mi></mml:math> collisions at <mml:math altimg="si4.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:msub><mml:mi>s</mml:mi><mml:mi mathvariant="normal">NN</mml:mi></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>62.4</mml:mn></mml:math> and 200 GeV journal November 2007
Strange particle production and elliptic flow from CERES journal November 2006
Review of Particle Physics journal October 2016
Hadronic and electromagnetic probes of hot and dense nuclear matter11Supported by BMBF, DFG, GSI Darmstadt and FZ Jülich. journal January 1999
Antinuclei in heavy-ion collisions journal October 2018
Strangeness dynamics and transverse pressure in relativistic nucleus-nucleus collisions journal May 2004
Energy dependence of pion and kaon production in central Pb+Pb collisions journal November 2002
Strangeness Production in the Quark-Gluon Plasma journal April 1982
Kaon production and kaon to pion ratio in Au + Au collisions at sNN=130 GeV journal August 2004
Measurements of ϕ meson production in relativistic heavy-ion collisions at the BNL Relativistic Heavy Ion Collider (RHIC) journal June 2009
Beam Energy Dependence of Moments of the Net-Charge Multiplicity Distributions in Au + Au Collisions at RHIC journal August 2014
Scaling Properties of Hyperon Production in Au + Au Collisions at s N N = 200 GeV journal February 2007
Centrality dependence of baryon and meson momentum distributions in proton-nucleus collisions journal February 2002
Particle production at high baryon density in central Au+Au reactions at 11.6 A GeV/ c journal February 1998
On the chemical equilibration of strangeness-exchange reactions in heavy-ion collisions journal December 2004
Antilambda Production in A u + A u Collisions at 11.7 A GeV / c journal November 2001
Λ and Λ ¯ Production in Central Pb-Pb Collisions at 40, 80, and 158 A G e V journal July 2004
Erratum: Centrality dependence of baryon and meson momentum distributions in proton-nucleus collisions [Phys. Rev. C 65 , 034905 (2002)] journal May 2003
Production of charged pions, kaons and protons at large transverse momenta in pp and Pb–Pb collisions at s NN = 2.76 TeV journal September 2014
Near-Threshold Production of the Multistrange Ξ Hyperon journal November 2003
Strange and multistrange particle production in Au + Au collisions at s NN = 62.4  GeV journal February 2011
Beam Energy Dependence of Jet-Quenching Effects in Au + Au Collisions at s NN = 7.7 , 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV journal July 2018
Hadron production in central nucleus–nucleus collisions at chemical freeze-out journal June 2006
Probing parton dynamics of QCD matter with Ω and ϕ production journal February 2016
ϕ meson production in <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi mathvariant="normal">Au</mml:mi><mml:mo>+</mml:mo><mml:mi mathvariant="normal">Au</mml:mi></mml:math> and <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:math> collisions at <mml:math altimg="si3.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:msub><mml:mi>s</mml:mi><mml:mrow><mml:mi>N</mml:mi><mml:mi>N</mml:mi></mml:mrow></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mml:mn><mml:mspace width="0.25em"/><mml:mtext>GeV</mml:mtext></mml:math> journal April 2005
Strangeness enhancement and energy dependence in heavy ion collisions journal August 2002
Production of hadrons at large transverse momentum at 200, 300, and 400 GeV journal June 1975
Parton distributions at hadronization from bulk dense matter produced in Au + Au collisions at s NN = 200 GeV journal September 2008
QCD Phase Diagram: Phase Transition, Critical Point and Fluctuations journal November 2009
A method to improve tracking and particle identification in TPCs and silicon detectors journal June 2006
Elliptic Flow at Large Transverse Momenta from Quark Coalescence journal August 2003
Λ production by 11.6 A GeV/c au beam on Au target [Phys. Lett. B 382 (1996) 35] journal October 1996
Elliptic flow of identified hadrons in Au+Au collisions at s NN = 7.7 –62.4 GeV journal July 2013
Parton Coalescence and the Antiproton/Pion Anomaly at RHIC journal May 2003
The TOFp/pVPD time-of-flight system for STAR
  • Llope, W. J.; Geurts, F.; Mitchell, J. W.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 522, Issue 3 https://doi.org/10.1016/j.nima.2003.11.414
journal April 2004
System-size dependence of Λ and Ξ production in nucleus-nucleus collisions at 40 A and 158 A GeV measured at the CERN Super Proton Synchrotron journal September 2009
Hadronization in Heavy-Ion Collisions: Recombination and Fragmentation of Partons journal May 2003
Glauber Modeling in High-Energy Nuclear Collisions journal November 2007
Features of particle multiplicities and strangeness production in central heavy ion collisions between 1 . 7 A and 1 5 8 A GeV / c journal June 2001
Centrality Dependence of π + / , K + / , p , and p ¯ Production from s NN = 130 GeV Au + Au Collisions at RHIC journal May 2002
The STAR trigger
  • Bieser, F. S.; Crawford, H. J.; Engelage, J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 499, Issue 2-3 https://doi.org/10.1016/S0168-9002(02)01974-5
journal March 2003
Partonic Flow and ϕ -Meson Production in Au + Au Collisions at s N N = 200 GeV journal September 2007
Energy dependence of Λ and Ξ production in central Pb + Pb collisions at 20 A , 30 A , 40 A , 80 A , and 158 A GeV measured at the CERN Super Proton Synchrotron journal September 2008
Additional Strange Hadrons from QCD Thermodynamics and Strangeness Freezeout in Heavy Ion Collisions journal August 2014
A single Time-of-Flight tray based on multigap resistive plate chambers for the STAR experiment at RHIC
  • Bonner, B.; Chen, H.; Eppley, G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 508, Issue 1-2 https://doi.org/10.1016/S0168-9002(03)01347-0
journal August 2003
Midrapidity Λ and Λ ¯ Production in A u + A u Collisions at s N N = 130 G e V journal August 2002
Measurement of Λ and Λ ¯ Particles in A u + A u Collisions at s N N = 130 G e V journal August 2002
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
Λ production by 11.6 A GeV/c Au beam on Au target journal August 1996
Hadron production in heavy ion collisions: Fragmentation and recombination from a dense parton phase journal October 2003
QCD Phase Diagram and the Critical Point journal January 2004
Microscopic models for ultrarelativistic heavy ion collisions journal January 1998
Multi-strange baryon production at mid-rapidity in Pb–Pb collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msqrt><mml:msub><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="normal">NN</mml:mi></mml:mrow></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>2.76</mml:mn><mml:mtext> TeV</mml:mtext></mml:math> journal January 2014
Collision energy dependence of moments of net-kaon multiplicity distributions at RHIC journal October 2018
Centrality dependence of kaon yields in Si + A and Au+Au collisions at relativistic energies journal September 1999
Maximum relative strangeness content in heavy-ion collisions around 30 GeV journal January 2002
Identified Baryon and Meson Distributions at Large Transverse Momenta from Au + Au Collisions at s N N = 200 GeV journal October 2006
Identified Particle Distributions in p p and Au + Au Collisions at s N N = 200 GeV journal March 2004
Energy and centrality dependence of p ¯ and p production and the Λ ¯ / p ¯ ratio in Pb+Pb collisions between 20 A GeV and 158 A GeV journal April 2006
Transverse-Momentum and Collision-Energy Dependence of High- p T Hadron Suppression in A u + A u Collisions at Ultrarelativistic Energies journal October 2003
Energy Dependence of Moments of Net-Proton Multiplicity Distributions at RHIC journal January 2014
Beam-Energy Dependence of the Directed Flow of Protons, Antiprotons, and Pions in Au+Au Collisions journal April 2014
Strangeness Enhancement in Cu-Cu and Au-Au Collisions at s N N = 200 GeV journal February 2012
Centrality, rapidity and transverse momentum dependence of <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:mi mathvariant="normal">J</mml:mi><mml:mo stretchy="false">/</mml:mo><mml:mi>ψ</mml:mi></mml:math> suppression in Pb–Pb collisions at <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msqrt><mml:msub><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="normal">NN</mml:mi></mml:mrow></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>2.76</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> journal June 2014
Single identified hadron spectra from s N N = 130 GeV Au + Au collisions journal February 2004
Relativistic hadron-hadron collisions in the ultra-relativistic quantum molecular dynamics model journal September 1999
Observation of an Antimatter Hypernucleus journal March 2010
Bulk properties of the medium produced in relativistic heavy-ion collisions from the beam energy scan program journal October 2017
Production of strange particles at intermediate p T in central Au+Au collisions at high energies journal May 2007
STAR detector overview
  • Ackermann, K. H.; Adams, N.; Adler, C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 499, Issue 2-3 https://doi.org/10.1016/S0168-9002(02)01960-5
journal March 2003
The STAR time projection chamber: a unique tool for studying high multiplicity events at RHIC
  • Anderson, M.; Berkovitz, J.; Betts, W.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 499, Issue 2-3 https://doi.org/10.1016/S0168-9002(02)01964-2
journal March 2003
Inclusive distributions for hadronic collisions in the valon-recombination model journal August 2002
Extensive particle identification with TPC and TOF at the STAR experiment
  • Shao, Ming; Barannikova, Olga; Dong, Xin
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 558, Issue 2 https://doi.org/10.1016/j.nima.2005.11.251
journal March 2006
Observation of an Energy-Dependent Difference in Elliptic Flow between Particles and Antiparticles in Relativistic Heavy Ion Collisions journal April 2013
Energy and system size dependence of ϕ meson production in <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi mathvariant="normal">Cu</mml:mi><mml:mo>+</mml:mo><mml:mi mathvariant="normal">Cu</mml:mi></mml:math> and <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi mathvariant="normal">Au</mml:mi><mml:mo>+</mml:mo><mml:mi mathvariant="normal">Au</mml:mi></mml:math> collisions journal March 2009
Ω and Ω ¯ + Production in Central Pb + Pb collisions at 40 and 158 A GeV journal May 2005
K S 0 and Λ Production in Pb-Pb Collisions at s N N = 2.76 TeV journal November 2013
Systematic measurements of identified particle spectra in pp , d + Au , and Au + Au collisions at the STAR detector journal March 2009
Λ Spectra in 11.6 A GeV / c Au-Au Collisions journal January 2002
Multistrange Baryon Production in Au-Au Collisions at s N N = 130     GeV journal May 2004
Energy and system size dependence of chemical freeze-out in relativistic nuclear collisions journal April 2006
Partonic coalescence in relativistic heavy ion collisions journal September 2003
Energy dependence of hyperon production in nucleus–nucleus collisions at SPS journal August 2004
Enhancement of hyperon production at central rapidity in 158 A GeV/ c Pb–Pb collisions journal February 2006
Nuclear matter expansion parameters from the measurement of differential multiplicities for Λ production in central Au + Au collisions at AGS journal July 1998
Pion and kaon production in central Pb + Pb collisions at 20 A and 30 A GeV: Evidence for the onset of deconfinement journal February 2008