Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at $ \sqrt{s_{\mathrm{NN}}} $ = 2.76 and 5.02 TeV - INSPIRE

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Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 and 5.02 TeV

ALICE

Collaboration

May 29, 2020

29 pages

Published in:

JHEP 09 (2020) 160

Published: Sep 24, 2020

e-Print:

2005.14640 [nucl-ex]

DOI:

10.1007/JHEP09(2020)160

Report number:

CERN-EP-2020-098

Experiments:

CERN-LHC-ALICE

View in:

reference search47 citations

Citations per year

Abstract: (Springer)

Systematic studies of charge-dependent two- and three-particle correlations in Pb-Pb collisions at

\sqrt{s_{\mathrm{NN}}}

= 2.76 and 5.02 TeV used to probe the Chiral Magnetic Effect (CME) are presented. These measurements are performed for charged particles in the pseudorapidity (η) and transverse momentum (p

_{T}

) ranges |η| < 0.8 and 0.2 < p

_{T}

< 5 GeV/c. A significant charge-dependent signal that becomes more pronounced for peripheral collisions is reported for the CME-sensitive correlators γ

_{1, 1}

= 〈cos(φ

_{α}

+ φ

_{β}

− 2Ψ

_{2}

)〉 and γ

_{1, − 3}

= 〈cos(φ

_{α}

− 3φ

_{β}

+ 2Ψ

_{2}

)〉. The results are used to estimate the contribution of background effects, associated with local charge conservation coupled to anisotropic flow modulations, to measurements of the CME. A blast-wave parametrisation that incorporates local charge conservation tuned to reproduce the centrality dependent background effects is not able to fully describe the measured γ

_{1,1}

. Finally, the charge and centrality dependence of mixed-harmonics three-particle correlations, of the form γ

_{1, 2}

= 〈cos(φ

_{α}

+ 2φ

_{β}

− 3Ψ

_{3}

)〉, which are insensitive to the CME signal, verify again that background contributions dominate the measurement of γ

_{1,1}

.[graphic not available: see fulltext]

Note:

29 pages, 8 captioned figures, 4 tables, authors from page 24, published version, figures at http://alice-publications.web.cern.ch/node/6296

Hadron-Hadron scattering (experiments)
background: effect
effect: magnetic
charge: conservation law
magnetic field: chiral
heavy ion: scattering
angular correlation: charge dependence
flow: anisotropy
transverse momentum
charged particle

References(64)

Figures(10)

[1]

Theory and phenomenology of the QCD vacuum

Edward V. Shuryak
(
- Novosibirsk, IYF
)

- Phys.Rept. 115 (1984) 151
•
DOI:
- 10.1016/0370-1573(84)90037-1

[2]

Quarks and Gluons at High Temperatures and Densities

- Phys.Rept. 130 (1986) 217
•
DOI:
- 10.1016/0370-1573(86)90169-9

[3]

Signatures of quark gluon plasma formation in high-energy heavy ion collisions: A Critical review

S.A. Bass
(
- Duke U. and
- Washington U., Seattle
)
,
M. Gyulassy
(
- Columbia U. and
- Washington U., Seattle
)
,
Horst Stoecker
(
- Frankfurt U. and
- Washington U., Seattle
)
,
W. Greiner
(
- Frankfurt U.
)

- J.Phys.G 25 (1999) R1-R57
•
e-Print:
- hep-ph/9810281
•
DOI:
- 10.1088/0954-3899/25/3/013

[4]

The QCD equation of state with dynamical quarks

Szabolcs Borsanyi
(
- Wuppertal U.
)
,
Gergely Endrodi
(
- Eotvos U.
)
,
Zoltan Fodor
(
- Wuppertal U. and
- Eotvos U.
)
,
Antal Jakovac
(
- Wuppertal U.
)
,
Sandor D. Katz
(
- Eotvos U.
)

et al.

- JHEP 11 (2010) 077
•
e-Print:
- 1007.2580
•
DOI:
- 10.1007/JHEP11(2010)077

[5]

QCD Phase Transition with Chiral Quarks and Physical Quark Masses

Tanmoy Bhattacharya
(
- Los Alamos
)
,
Michael I. Buchoff
(
- LLNL, Livermore and
- Washington U., Seattle
)
,
Norman H. Christ
(
- Columbia U.
)
,
H.-T. Ding
(
- Hua-Zhong Normal U., LQLP and
- Hua-Zhong Normal U.
)
,
Rajan Gupta
(
- Los Alamos
)

et al.

- Phys.Rev.Lett. 113 (2014) 8, 082001
•
e-Print:
- 1402.5175
•
DOI:
- 10.1103/PhysRevLett.113.082001

[6]

A Theory of Spontaneous T Violation

T.D. Lee
(
- Columbia U.
)

- Phys.Rev.D 8 (1973) 1226-1239,
- In *Lee, T.D.: Selected papers, vol. 2*, 516-529
•
DOI:
- 10.1103/PhysRevD.8.1226

[7]

Vacuum Stability and Vacuum Excitation in a Spin 0 Field Theory

T.D. Lee
(
- Columbia U.
)
,
G.C. Wick
(
- Columbia U.
)

- Phys.Rev.D 9 (1974) 2291-2316
•
DOI:
- 10.1103/PhysRevD.9.2291

[8]

Event-by-event fluctuations of magnetic and electric fields in heavy ion collisions

Adam Bzdak
(
- RIKEN BNL
)
,
Vladimir Skokov
(
- Brookhaven
)

- Phys.Lett.B 710 (2012) 171-174
•
e-Print:
- 1111.1949
•
DOI:
- 10.1016/j.physletb.2012.02.065

[9]

Strong P, {CP}, T Violations in Heavy Ion Collisions

- Z.Phys.C 26 (1985) 627
•
DOI:
- 10.1007/BF01551807

[10]

Possibility of spontaneous parity violation in hot QCD

Dmitri Kharzeev
(
- RIKEN BNL
)
,
R.D. Pisarski
(
- Brookhaven
)
,
Michel H.G. Tytgat
(
- Brookhaven and
- Brussels U.
)

- Phys.Rev.Lett. 81 (1998) 512-515
•
e-Print:
- hep-ph/9804221
•
DOI:
- 10.1103/PhysRevLett.81.512

[11]

Pionic measures of parity and CP violation in high-energy nuclear collisions

Dmitri Kharzeev
(
- RIKEN BNL
)
,
Robert D. Pisarski
(
- Brookhaven
)

- Phys.Rev.D 61 (2000) 111901
•
e-Print:
- hep-ph/9906401
•
DOI:
- 10.1103/PhysRevD.61.111901

[12]

The Chiral Magnetic Effect and Anomaly-Induced Transport

Dmitri E. Kharzeev
(
- Brookhaven and
- SUNY, Stony Brook
)

- Prog.Part.Nucl.Phys. 75 (2014) 133-151
•
e-Print:
- 1312.3348
•
DOI:
- 10.1016/j.ppnp.2014.01.002

[13]

Topology, magnetic field, and strongly interacting matter

Dmitri E. Kharzeev
(
- SUNY, Stony Brook and
- Brookhaven
)

- Ann.Rev.Nucl.Part.Sci. 65 (2015) 193-214
•
e-Print:
- 1501.01336
•
DOI:
- 10.1146/annurev-nucl-102313-025420

[14]

Charge separation induced by P-odd bubbles in QCD matter

D. Kharzeev
(
- Brookhaven
)
,
A. Zhitnitsky
(
- British Columbia U.
)

- Nucl.Phys.A 797 (2007) 67-79
•
e-Print:
- 0706.1026
•
DOI:
- 10.1016/j.nuclphysa.2007.10.001

[15]

The Chiral Magnetic Effect

Kenji Fukushima
(
- Kyoto U., Yukawa Inst., Kyoto
)
,
Dmitri E. Kharzeev
(
- Brookhaven
)
,
Harmen J. Warringa
(
- Brookhaven
)

- Phys.Rev.D 78 (2008) 074033
•
e-Print:
- 0808.3382
•
DOI:
- 10.1103/PhysRevD.78.074033

[16]

The Effects of topological charge change in heavy ion collisions: 'Event by event P and CP violation'

Dmitri E. Kharzeev
(
- Brookhaven
)
,
Larry D. McLerran
(
- Brookhaven and
- RIKEN BNL
)
,
Harmen J. Warringa
(
- Brookhaven
)

- Nucl.Phys.A 803 (2008) 227-253
•
e-Print:
- 0711.0950
•
DOI:
- 10.1016/j.nuclphysa.2008.02.298

[17]

Observation of the chiral magnetic effect in ZrTe5

Qiang Li
(
- Brookhaven Natl. Lab.
)
,
Dmitri E. Kharzeev
(
- Brookhaven Natl. Lab. and
- SUNY, Stony Brook
)
,
Cheng Zhang
(
- Brookhaven Natl. Lab.
)
,
Yuan Huang
(
- Brookhaven Natl. Lab.
)
,
I. Pletikosic
(
- Brookhaven Natl. Lab. and
- Princeton U.
)

et al.

- Nature Phys. 12 (2016) 550-554
•
e-Print:
- 1412.6543
•
DOI:
- 10.1038/nphys3648

[18]

Flow study in relativistic nuclear collisions by Fourier expansion of Azimuthal particle distributions

S. Voloshin
(
- Pittsburgh U.
)
,
Y. Zhang
(
- SUNY, Stony Brook
)

- Z.Phys.C 70 (1996) 665-672
•
e-Print:
- hep-ph/9407282
•
DOI:
- 10.1007/s002880050141

[19]

System size, energy and pseudorapidity dependence of directed and elliptic flow at RHIC

PHOBOS

Collaboration

•

S. Manly
(
- Rochester U.
)

et al.

- Nucl.Phys.A 774 (2006) 523-526
•
e-Print:
- nucl-ex/0510031
•
DOI:
- 10.1016/j.nuclphysa.2006.06.079

[20]

Eccentricity fluctuations and elliptic flow at RHIC

Rajeev S. Bhalerao
(
- Tata Inst.
)
,
Jean-Yves Ollitrault
(
- Saclay, SPhT
)

- Phys.Lett.B 641 (2006) 260-264
•
e-Print:
- nucl-th/0607009
•
DOI:
- 10.1016/j.physletb.2006.08.055

[21]

Importance of correlations and fluctuations on the initial source eccentricity in high-energy nucleus-nucleus collisions

PHOBOS

Collaboration

•

B. Alver
(
- MIT, LNS
)

et al.

- Phys.Rev.C 77 (2008) 014906
•
e-Print:
- 0711.3724
•
DOI:
- 10.1103/PhysRevC.77.014906

[22]

Collision geometry fluctuations and triangular flow in heavy-ion collisions

B. Alver
(
- MIT
)
,
G. Roland
(
- MIT
)

- Phys.Rev.C 81 (2010) 054905,
- Phys.Rev.C 82 (2010) 039903 (erratum)
•
e-Print:
- 1003.0194
•
DOI:
- 10.1103/PhysRevC.82.039903

[23]

Triangular flow in hydrodynamics and transport theory

- Phys.Rev.C 82 (2010) 034913
•
e-Print:
- 1007.5469
•
DOI:
- 10.1103/PhysRevC.82.034913

[24]

Parity violation in hot QCD: How to detect it

Sergei A. Voloshin
(
- Wayne State U.
)

- Phys.Rev.C 70 (2004) 057901
•
e-Print:
- hep-ph/0406311
•
DOI:
- 10.1103/PhysRevC.70.057901

[25]

Charge separation relative to the reaction plane in Pb-Pb collisions at $\sqrt{s_{NN}}= 2.76$ TeV

ALICE

Collaboration

•

Betty Abelev
(
- LLNL, Livermore
)

et al.

- Phys.Rev.Lett. 110 (2013) 1, 012301
•
e-Print:
- 1207.0900
•
DOI:
- 10.1103/PhysRevLett.110.012301

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