Conserved Charge Fluctuations from Lattice QCD and the Beam Energy Scan - INSPIRE

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Conserved Charge Fluctuations from Lattice QCD and the Beam Energy Scan

F. Karsch
(
- Brookhaven Natl. Lab. and
- Bielefeld U.
)
,
A. Bazavov
(
- Iowa State U.
)
,
H. -T. Ding
(
)
,
P. Hegde
(
- CCNU, Wuhan, Inst. Part. Phys. and
- Hua-Zhong Normal U., LQLP
)
,
O. Kaczmarek
(
- Bielefeld U.
)

Dec 22, 2015

4 pages

Part of Proceedings, 25th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter 2015) : Kobe, Japan, September 27-October 3, 2015, 352-355

Published in:

Nucl.Phys.A 956 (2016) 352-355

Contribution to:

- Quark Matter 2015
, 352-355

Published: Dec, 2016

e-Print:

1512.06987 [hep-lat]

DOI:

10.1016/j.nuclphysa.2016.01.008

View in:

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Abstract: (Elsevier)

We discuss the next-to-leading order Taylor expansion of ratios of cumulants of net-baryon number fluctuations. We focus on the relation between the skewness ratio, SBσB≡χ3B/χ1B , and the kurtosis ratio, κBσB2≡χ4B/χ2B . We show that differences in these two cumulant ratios are small for small values of the baryon chemical potential. The next-to-leading order correction to κBσB2 however is approximately three times larger than that for SBσB . The former thus drops much more rapidly with increasing beam energy, sNN . We argue that these generic patterns are consistent with current data on cumulants of net-proton number fluctuations measured by the STAR Collaboration at sNN≥19.6 GeV .

Note:

4 pages, 4 figures, contribution to the Quark Matter 2015 proceedings

Quark-Gluon Plasma
Lattice QCD
Heavy Ion Collisions
beam: energy
fluctuation: measured
charge: fluctuation
potential: chemical
lattice field theory
quantum chromodynamics
higher-order: 1

References(7)

Figures(4)

[1]

Beam energy dependence of moments of the net-charge multiplicity distributions in Au+Au collisions at RHIC

STAR

Collaboration

•

L. Adamczyk
(
- AGH-UST, Cracow
)

et al.

- Phys.Rev.Lett. 113 (2014) 092301
•
e-Print:
- 1402.1558
•
DOI:
- 10.1103/PhysRevLett.113.092301

[2]

Measurement of higher cumulants of net-charge multiplicity distributions in Au $+$ Au collisions at $\sqrt{s_{_{NN}}}=7.7-200$ GeV

PHENIX

Collaboration

•

A. Adare
(
- Colorado U.
)

et al.

- Phys.Rev.C 93 (2016) 1, 011901
•
e-Print:
- 1506.07834
•
DOI:
- 10.1103/PhysRevC.93.011901

[3]

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

[4]

Energy Dependence of Moments of Net-Proton and Net-Charge Multiplicity Distributions at STAR

STAR

Collaboration

•

Xiaofeng Luo
(
- Hua-Zhong Normal U. and
- Hua-Zhong Normal U., LQLP
)

for the collaboration.

- PoS CPOD2014 (2015) 019
•
e-Print:
- 1503.02558
•
DOI:
- 10.22323/1.217.0019

[5]

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.
)

et al.

- Phys.Rev.Lett. 109 (2012) 192302
•
e-Print:
- 1208.1220
•
DOI:
- 10.1103/PhysRevLett.109.192302

[6]

in preparation

A. Bazavov

[7]

Curvature of the freeze-out line in heavy ion collisions

A. Bazavov
(
- Iowa U.
)
,
H.-T. Ding
(
- CCNU, Wuhan, Inst. Part. Phys. and
- Hua-Zhong Normal U., LQLP
)
,
P. Hegde
(
- CCNU, Wuhan, Inst. Part. Phys. and
- Hua-Zhong Normal U., LQLP
)
,
O. Kaczmarek
(
- Bielefeld U.
)
,
F. Karsch
(
- Bielefeld U. and
- Brookhaven
)

et al.

- Phys.Rev.D 93 (2016) 1, 014512
•
e-Print:
- 1509.05786
•
DOI:
- 10.1103/PhysRevD.93.014512