Freeze-out Conditions in Heavy Ion Collisions from QCD Thermodynamics - INSPIRE

DataBETA

Freeze-out Conditions in Heavy Ion Collisions from QCD Thermodynamics

A. Bazavov
(
- Brookhaven
)
,
H.T. Ding
(
- Brookhaven
)
,
P. Hegde
(
- Brookhaven
)
,
O. Kaczmarek
(
- Bielefeld U.
)
,
F. Karsch
(
- Brookhaven and
- Bielefeld U.
)

Aug, 2012

5 pages

Published in:

Phys.Rev.Lett. 109 (2012) 192302

e-Print:

1208.1220 [hep-lat]

DOI:

10.1103/PhysRevLett.109.192302

View in:

reference search311 citations

Citations per year

Abstract: (arXiv)

We present a determination of chemical freeze-out conditions in heavy ion collisions based on ratios of cumulants of net electric charge fluctuations. These ratios can reliably be calculated in lattice QCD for a wide range of chemical potential values by using a next-to-leading order Taylor series expansion around the limit of vanishing baryon, electric charge and strangeness chemical potentials. From a computation of up to fourth order cumulants and charge correlations we first determine the strangeness and electric charge chemical potentials that characterize freeze-out conditions in a heavy ion collision and confirm that in the temperature range 150 MeV < T < 170 MeV the hadron resonance gas model provides good approximations for these parameters that agree with QCD calculations on the (5-15)% level. We then show that a comparison of lattice QCD results for ratios of up to third order cumulants of electric charge fluctuations with experimental results allows to extract the freeze-out baryon chemical potential and the freeze-out temperature.

Note:

5 pages, 7 EPS files

12.38.Gc
12.38.Mh
24.60.-k
25.75.-q
potential: chemical
charge: electric
charge: fluctuation
freeze-out: chemical
freeze-out: temperature
quantum chromodynamics: thermodynamics

References(25)

Figures(7)

[1]

STAR experiment results from the beam energy scan program at RHIC

STAR

Collaboration

•

Bedangadas Mohanty
(
- Calcutta, VECC
)

for the collaboration.

- J.Phys.G 38 (2011) 124023
•
e-Print:
- 1106.5902
•
DOI:
- 10.1088/0954-3899/38/12/124023

[2]

Chiral Restoration at Finite Density and Temperature

M. Asakawa
(
- Tokyo U.
)
,
K. Yazaki
(
- Tokyo U.
)

- Nucl.Phys.A 504 (1989) 668-684
•
DOI:
- 10.1016/0375-9474(89)90002-X

[3]

Color superconductivity and chiral symmetry restoration at nonzero baryon density and temperature

Juergen Berges
(
- MIT, LNS and
- MIT
)
,
Krishna Rajagopal
(
- MIT, LNS and
- MIT
)

- Nucl.Phys.B 538 (1999) 215-232
•
e-Print:
- hep-ph/9804233
•
DOI:
- 10.1016/S0550-3213(98)00620-8

[3]

On the phase diagram of QCD

Adam Miklos Halasz
(
- SUNY, Stony Brook
)
,
A.D. Jackson
(
- Bohr Inst.
)
,
R.E. Shrock
(
- SUNY, Stony Brook
)
,
Misha A. Stephanov
(
- SUNY, Stony Brook
)
,
J.J.M. Verbaarschot
(
- SUNY, Stony Brook
)

- Phys.Rev.D 58 (1998) 096007
•
e-Print:
- hep-ph/9804290
•
DOI:
- 10.1103/PhysRevD.58.096007

[4]

Higher Moments of Net-proton Multiplicity Distributions at RHIC

STAR

Collaboration

•

M.M. Aggarwal
(
- Panjab U.
)

et al.

- Phys.Rev.Lett. 105 (2010) 022302
•
e-Print:
- 1004.4959
•
DOI:
- 10.1103/PhysRevLett.105.022302

[5]

Charged hadron multiplicity fluctuations in Au+Au and Cu+Cu collisions from $\sqrt{s_{NN}}=22.5$ to 200 GeV

PHENIX

Collaboration

•

A. Adare
(
- Colorado U.
)

et al.

- Phys.Rev.C 78 (2008) 044902
•
e-Print:
- 0805.1521
•
DOI:
- 10.1103/PhysRevC.78.044902

[6]

Net-Charge Fluctuations in Pb-Pb collisions at $\sqrt{s}_{NN} = 2.76$ TeV

ALICE

Collaboration

•

Betty Abelev
(
- LLNL, Livermore
)

et al.

- Phys.Rev.Lett. 110 (2013) 15, 152301
•
e-Print:
- 1207.6068
•
DOI:
- 10.1103/PhysRevLett.110.152301

[7]

Hadronic fluctuations at the QCD phase transition

S. Ejiri
(
- Bielefeld U. and
- Tokyo U.
)
,
F. Karsch
(
- Bielefeld U. and
- Brookhaven
)
,
K. Redlich
(
- Wroclaw U. and
- CERN
)

- Phys.Lett.B 633 (2006) 275-282
•
e-Print:
- hep-ph/0509051
•
DOI:
- 10.1016/j.physletb.2005.11.083

[8]

Particle production in heavy ion collisions

Peter Braun-Munzinger
(
- Darmstadt, GSI
)
,
Krzysztof Redlich
(
- Bielefeld U. and
- Wroclaw U.
)
,
Johanna Stachel
(
- Heidelberg U.
)

[9]

Probing freeze-out conditions in heavy ion collisions with moments of charge fluctuations

Frithjof Karsch
(
- Bielefeld U. and
- Brookhaven
)
,
Krzysztof Redlich
(
- Wroclaw U. and
- CERN
)

- Phys.Lett.B 695 (2011) 136-142
•
e-Print:
- 1007.2581
•
DOI:
- 10.1016/j.physletb.2010.10.046

[9]

Net-proton probability distribution in heavy ion collisions

P. Braun-Munzinger
(
- Darmstadt, EMMI and
- Darmstadt, GSI and
- Darmstadt, Tech. U. and
- Frankfurt U., FIAS
)
,
B. Friman
(
- Darmstadt, GSI
)
,
F. Karsch
(
- Brookhaven and
- Bielefeld U.
)
,
K. Redlich
(
- Darmstadt, EMMI and
- Wroclaw U.
)
,
V. Skokov
(
- Darmstadt, GSI and
- Frankfurt U., FIAS
)

- Phys.Rev.C 84 (2011) 064911
•
e-Print:
- 1107.4267
•
DOI:
- 10.1103/PhysRevC.84.064911

[10]

Phase boundary for the chiral transition in (2+1) -flavor QCD at small values of the chemical potential

O. Kaczmarek
(
- Bielefeld U.
)
,
F. Karsch
(
- Bielefeld U. and
- Brookhaven
)
,
E. Laermann
(
- Bielefeld U.
)
,
C. Miao
(
- Brookhaven
)
,
S. Mukherjee
(
- Brookhaven
)

et al.

- Phys.Rev.D 83 (2011) 014504
•
e-Print:
- 1011.3130
•
DOI:
- 10.1103/PhysRevD.83.014504

[11]

The QCD phase diagram at nonzero quark density

G. Endrodi
(
- Eotvos U.
)
,
Z. Fodor
(
- Eotvos U. and
- Wuppertal U.
)
,
S.D. Katz
(
- Eotvos U. and
- Wuppertal U.
)
,
K.K. Szabo
(
- Wuppertal U.
)

- JHEP 04 (2011) 001
•
e-Print:
- 1102.1356
•
DOI:
- 10.1007/JHEP04(2011)001

[12]

Comparison of chemical freeze-out criteria in heavy-ion collisions

J. Cleymans
(
- UCT-CERN Res. Ctr. and
- Cape Town U.
)
,
H. Oeschler
(
- Darmstadt, Tech. Hochsch. and
- UCT-CERN Res. Ctr.
)
,
K. Redlich
(
- Wroclaw U. and
- CERN and
- Darmstadt, Tech. Hochsch.
)
,
S. Wheaton
(
- Wroclaw U. and
- UCT-CERN Res. Ctr. and
- Darmstadt, Tech. Hochsch.
)

- Phys.Rev.C 73 (2006) 034905
•
e-Print:
- hep-ph/0511094
•
DOI:
- 10.1103/PhysRevC.73.034905

[13]

Revealing baryon number fluctuations from proton number fluctuations in relativistic heavy ion collisions

Masakiyo Kitazawa
(
- Osaka U.
)
,
Masayuki Asakawa
(
- Osaka U.
)

- Phys.Rev.C 85 (2012) 021901
•
e-Print:
- 1107.2755
•
DOI:
- 10.1103/PhysRevC.85.021901

[14]

Baryon number conservation and the cumulants of the net proton distribution

- Phys.Rev.C 87 (2013) 1, 014901
•
e-Print:
- 1203.4529
•
DOI:
- 10.1103/PhysRevC.87.014901

[15]

Pressure and nonlinear susceptibilities in QCD at finite chemical potentials

Rajiv V. Gavai
(
- Tata Inst.
)
,
Sourendu Gupta
(
- Tata Inst.
)

- Phys.Rev.D 68 (2003) 034506
•
e-Print:
- hep-lat/0303013
•
DOI:
- 10.1103/PhysRevD.68.034506

[15]

Thermodynamics of two flavor QCD to sixth order in quark chemical potential

et al.

- Phys.Rev.D 71 (2005) 054508
•
e-Print:
- hep-lat/0501030
•
DOI:
- 10.1103/PhysRevD.71.054508

[15]

Baryon Number, Strangeness and Electric Charge Fluctuations in QCD at High Temperature

M. Cheng
(
- Columbia U.
)
,
P. Hegde
(
- SUNY, Stony Brook and
- Brookhaven
)
,
C. Jung
(
- Brookhaven
)
,
F. Karsch
(
- Brookhaven and
- Bielefeld U.
)
,
O. Kaczmarek
(
- Bielefeld U.
)

et al.

- Phys.Rev.D 79 (2009) 074505
•
e-Print:
- 0811.1006
•
DOI:
- 10.1103/PhysRevD.79.074505

[16]

Fluctuations and Correlations of net baryon number, electric charge, and strangeness: A comparison of lattice QCD results with the hadron resonance gas model

HotQCD

Collaboration

•

A. Bazavov
(
- Brookhaven
)

et al.

- Phys.Rev.D 86 (2012) 034509
•
e-Print:
- 1203.0784
•
DOI:
- 10.1103/PhysRevD.86.034509

[16]

The chiral and deconfinement aspects of the QCD transition

et al.

- Phys.Rev.D 85 (2012) 054503
•
e-Print:
- 1111.1710
•
DOI:
- 10.1103/PhysRevD.85.054503

[17]

Fluctuations of conserved charges at finite temperature from lattice QCD

Szabolcs Borsanyi
(
- Wuppertal U.
)
,
Zoltan Fodor
(
- Wuppertal U. and
- Eotvos U. and
- IAS, Julich
)
,
Sandor D. Katz
(
- Eotvos U.
)
,
Stefan Krieg
(
- Wuppertal U. and
- IAS, Julich
)
,
Claudia Ratti
(
- Turin U. and
- INFN, Turin
)

et al.

- JHEP 01 (2012) 138
•
e-Print:
- 1112.4416
•
DOI:
- 10.1007/JHEP01(2012)138

[18]

Systematic Measurements of Identified Particle Spectra in $p p, d^+$ Au and Au+Au Collisions from STAR

STAR

Collaboration

•

B.I. Abelev
(
- Illinois U., Chicago
)

et al.

- Phys.Rev.C 79 (2009) 034909
•
e-Print:
- 0808.2041
•
DOI:
- 10.1103/PhysRevC.79.034909

[19]

Highly improved staggered quarks on the lattice, with applications to charm physics

HPQCD and
UKQCD

Collaborations

•

E. Follana
(
- Glasgow U.
)

et al.

- Phys.Rev.D 75 (2007) 054502
•
e-Print:
- hep-lat/0610092
•
DOI:
- 10.1103/PhysRevD.75.054502

[20]

Bielefeld-BNL Collaboration, in preparation