Higher Moments of Net-proton Multiplicity Distributions at RHIC - INSPIRE

DataBETA

Higher Moments of Net-proton Multiplicity Distributions at RHIC

STAR

Collaboration

Apr, 2010

6 pages

Published in:

Phys.Rev.Lett. 105 (2010) 022302

e-Print:

1004.4959 [nucl-ex]

DOI:

10.1103/PhysRevLett.105.022302

Experiments:

BNL-RHIC-STAR

View in:

reference search407 citations

Citations per year

Abstract: (arXiv)

We report the first measurements of the kurtosis (\kappa), skewness (S) and variance (\sigma^2) of net-proton multiplicity (N_p - N_pbar) distributions at midrapidity for Au+Au collisions at \sqrt(s_NN) = 19.6, 62.4, and 200 GeV corresponding to baryon chemical potentials (\mu_B) between 200 - 20 MeV. Our measurements of the products \kappa \sigma^2 and S \sigma, which can be related to theoretical calculations sensitive to baryon number susceptibilities and long range correlations, are constant as functions of collision centrality. We compare these products with results from lattice QCD and various models without a critical point and study the \sqrt(s_NN) dependence of \kappa \sigma^2. From the measurements at the three beam energies, we find no evidence for a critical point in the QCD phase diagram for \mu_B below 200 MeV.

Note:

6 pages and 4 figures. Version accepted for publication in Physical Review Letters

21.65.Qr
25.75.Gz
12.38.Mh
OSG : STAR
heavy ion: scattering
gold
p: multiplicity: measured
anti-p: multiplicity: measured
potential: chemical
multiplicity: moment

References(32)

Figures(4)

Experimental and theoretical challenges in the search for the quark gluon plasma: The STAR Collaboration's critical assessment of the evidence from RHIC collisions

STAR

Collaboration

•

John Adams
(
- Birmingham U.
)

et al.

- Nucl.Phys.A 757 (2005) 102-183
•
e-Print:
- nucl-ex/0501009
•
DOI:
- 10.1016/j.nuclphysa.2005.03.085

The Order of the quantum chromodynamics transition predicted by the standard model of particle physics

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

- Nature 443 (2006) 675-678
•
e-Print:
- hep-lat/0611014
•
DOI:
- 10.1038/nature05120

The QCD transition temperature: Results with physical masses in the continuum limit

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

- Phys.Lett.B 643 (2006) 46-54
•
e-Print:
- hep-lat/0609068
•
DOI:
- 10.1016/j.physletb.2006.10.021

The Transition temperature in QCD

et al.

- Phys.Rev.D 74 (2006) 054507
•
e-Print:
- hep-lat/0608013
•
DOI:
- 10.1103/PhysRevD.74.054507

Canonical partition function and finite density phase transition in lattice QCD

Shinji Ejiri
(
- Brookhaven
)

- Phys.Rev.D 78 (2008) 074507
•
e-Print:
- 0804.3227
•
DOI:
- 10.1103/PhysRevD.78.074507

Critical Points in the Linear Sigma Model with Quarks

E.Scott Bowman
(
- Minnesota U.
)
,
Joseph I. Kapusta
(
- Minnesota U.
)

- Phys.Rev.C 79 (2009) 015202
•
e-Print:
- 0810.0042
•
DOI:
- 10.1103/PhysRevC.79.015202

QCD Phase Diagram and the Critical Point

Mikhail A. Stephanov
(
- Illinois U., Chicago and
- RIKEN BNL
)

- Prog.Theor.Phys.Suppl. 153 (2004) 139-156,
- Int.J.Mod.Phys.A 20 (2005) 4387-4392
•
e-Print:
- hep-ph/0402115
•
DOI:
- 10.1143/PTPS.153.139

Critical point of QCD at finite T and mu, lattice results for physical quark masses

Z. Fodor
(
- Wuppertal U. and
- Eotvos U.
)
,
S.D. Katz
(
- Wuppertal U.
)

- JHEP 04 (2004) 050
•
e-Print:
- hep-lat/0402006
•
DOI:
- 10.1088/1126-6708/2004/04/050

QCD at finite chemical potential with six time slices

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

- Phys.Rev.D 78 (2008) 114503
•
e-Print:
- 0806.2233
•
DOI:
- 10.1103/PhysRevD.78.114503

The Critical end point of QCD

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

- Phys.Rev.D 71 (2005) 114014
•
e-Print:
- hep-lat/0412035
•
DOI:
- 10.1103/PhysRevD.71.114014

QCD Phase Diagram: Phase Transition, Critical Point and Fluctuations

Bedangadas Mohanty
(
- Calcutta, VECC
)

- Nucl.Phys.A 830 (2009) 899C-907C
•
e-Print:
- 0907.4476
•
DOI:
- 10.1016/j.nuclphysa.2009.10.132

Identified particle production, azimuthal anisotropy, and interferometry measurements in Au+Au collisions at s(NN)**(1/2) = 9.2- GeV

STAR

Collaboration

•

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

et al.

- Phys.Rev.C 81 (2010) 024911
•
e-Print:
- 0909.4131
•
DOI:
- 10.1103/PhysRevC.81.024911

Evolution of fluctuations near QCD critical point

M.A. Stephanov
(
- Illinois U., Chicago
)

- Phys.Rev.D 81 (2010) 054012
•
e-Print:
- 0911.1772
•
DOI:
- 10.1103/PhysRevD.81.054012

Baryon-strangeness correlations: A Diagnostic of strongly interacting matter

- Phys.Rev.Lett. 95 (2005) 182301
•
e-Print:
- nucl-th/0505052
•
DOI:
- 10.1103/PhysRevLett.95.182301

Fluctuation probes of quark deconfinement

- Phys.Rev.Lett. 85 (2000) 2072-2075
•
e-Print:
- hep-ph/0003169
•
DOI:
- 10.1103/PhysRevLett.85.2072

Event-by-event fluctuations in heavy ion collisions and the QCD critical point

Misha A. Stephanov
(
- SUNY, Stony Brook
)
,
K. Rajagopal
(
- MIT, LNS
)
,
Edward V. Shuryak
(
- SUNY, Stony Brook
)

- Phys.Rev.D 60 (1999) 114028
•
e-Print:
- hep-ph/9903292
•
DOI:
- 10.1103/PhysRevD.60.114028

Slowing out-of-equilibrium near the QCD critical point

Boris Berdnikov
(
- MIT, LNS
)
,
Krishna Rajagopal
(
- MIT, LNS
)

- Phys.Rev.D 61 (2000) 105017
•
e-Print:
- hep-ph/9912274
•
DOI:
- 10.1103/PhysRevD.61.105017

Non-Gaussian fluctuations near the QCD critical point

M.A. Stephanov
(
- Illinois U., Chicago
)

- Phys.Rev.Lett. 102 (2009) 032301
•
e-Print:
- 0809.3450
•
DOI:
- 10.1103/PhysRevLett.102.032301

Third moments of conserved charges as probes of QCD phase structure

- Phys.Rev.Lett. 103 (2009) 262301
•
e-Print:
- 0904.2089
•
DOI:
- 10.1103/PhysRevLett.103.262301

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

Kurtosis and compressibility near the chiral phase transition

B. Stokic
(
- Darmstadt, GSI
)
,
B. Friman
(
- Darmstadt, GSI
)
,
K. Redlich
(
- Wroclaw U. and
- Darmstadt, Tech. Hochsch.
)

- Phys.Lett.B 673 (2009) 192-196
•
e-Print:
- 0809.3129
•
DOI:
- 10.1016/j.physletb.2009.02.018

Proton number fluctuation as a signal of the QCD critical endpoint

Y. Hatta
(
- Kyoto U. and
- Wako, RIKEN
)
,
M.A. Stephanov
(
- Illinois U., Chicago and
- RIKEN BNL
)

- Phys.Rev.Lett. 91 (2003) 102003,
- Phys.Rev.Lett. 91 (2003) 129901 (erratum)
•
e-Print:
- hep-ph/0302002
•
DOI:
- 10.1103/PhysRevLett.91.102003

STAR detector overview

STAR

Collaboration

•

K.H. Ackermann

et al.

- Nucl.Instrum.Meth.A 499 (2003) 624-632
•
DOI:
- 10.1016/S0168-9002(02)01960-5

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

Energy dependence of pi+-, p and anti-p transverse momentum spectra for Au+Au collisions at s(NN)**(1/2) = 62.4 and 200-GeV

STAR

Collaboration

•

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

et al.

- Phys.Lett.B 655 (2007) 104-113
•
e-Print:
- nucl-ex/0703040
•
DOI:
- 10.1016/j.physletb.2007.06.035

1-25 of 32
1
2
25 / page