Net-Charge Fluctuations in Pb-Pb Collisions at root s(NN)=2.76 TeV

B. Abelev; J. Adam; D. Adamova; A.M. Adare; M.M. Aggarwal; Ian Bearden; Hans Bøggild; Ante Bilandzic; Christian Holm Christensen; Hans Hjersing Dalsgaard; Jens Jørgen Gaardhøje; Kristjan Herlache Gulbrandsen; Alexander Colliander Hansen; Børge Svane Nielsen; Casper Nygaard; Carsten Søgaard

doi:10.1103/PhysRevLett.110.152301

Net-Charge Fluctuations in Pb-Pb Collisions at root s(NN)=2.76 TeV

B. Abelev, J. Adam, D. Adamova, A.M. Adare, M.M. Aggarwal, Ian Bearden, Hans Bøggild, Ante Bilandzic, Christian Holm Christensen, Hans Hjersing Dalsgaard, Jens Jørgen Gaardhøje, Kristjan Herlache Gulbrandsen, Alexander Colliander Hansen, Børge Svane Nielsen, Casper Nygaard, Carsten Søgaard

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68 Citationer (Scopus)

Abstract

We report the first measurement of the net-charge fluctuations in Pb-Pb collisions at √s_NN=2.76 TeV, measured with the ALICE detector at the CERN Large Hadron Collider. The dynamical fluctuations per unit entropy are observed to decrease when going from peripheral to central collisions. An additional reduction in the amount of fluctuations is seen in comparison to the results from lower energies. We examine the dependence of fluctuations on the pseudorapidity interval, which may account for the dilution of fluctuations during the evolution of the system. We find that the fluctuations at the LHC are smaller compared to the measurements at the BNL Relativistic Heavy Ion Collider, and as such, closer to what has been theoretically predicted for the formation of a quark-gluon plasma.

Originalsprog	Engelsk
Artikelnummer	152301
Tidsskrift	Physical Review Letters
Vol/bind	110
Udgave nummer	15
ISSN	0031-9007
DOI	https://doi.org/10.1103/PhysRevLett.110.152301
Status	Udgivet - 10 apr. 2013

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10.1103/PhysRevLett.110.152301

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Abelev, B., Adam, J., Adamova, D., Adare, A. M., Aggarwal, M. M., Bearden, I., Bøggild, H., Bilandzic, A., Christensen, C. H., Dalsgaard, H. H., Gaardhøje, J. J., Gulbrandsen, K. H., Hansen, A. C., Nielsen, B. S., Nygaard, C., & Søgaard, C. (2013). Net-Charge Fluctuations in Pb-Pb Collisions at root s(NN)=2.76 TeV. Physical Review Letters, 110(15), [152301]. https://doi.org/10.1103/PhysRevLett.110.152301

Abelev, B, Adam, J, Adamova, D, Adare, AM, Aggarwal, MM, Bearden, I , Bøggild, H, Bilandzic, A, Christensen, CH, Dalsgaard, HH, Gaardhøje, JJ , Gulbrandsen, KH, Hansen, AC, Nielsen, BS, Nygaard, C & Søgaard, C 2013, 'Net-Charge Fluctuations in Pb-Pb Collisions at root s(NN)=2.76 TeV', Physical Review Letters, bind 110, nr. 15, 152301. https://doi.org/10.1103/PhysRevLett.110.152301

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title = "Net-Charge Fluctuations in Pb-Pb Collisions at root s(NN)=2.76 TeV",

abstract = "We report the first measurement of the net-charge fluctuations in Pb-Pb collisions at √sNN=2.76 TeV, measured with the ALICE detector at the CERN Large Hadron Collider. The dynamical fluctuations per unit entropy are observed to decrease when going from peripheral to central collisions. An additional reduction in the amount of fluctuations is seen in comparison to the results from lower energies. We examine the dependence of fluctuations on the pseudorapidity interval, which may account for the dilution of fluctuations during the evolution of the system. We find that the fluctuations at the LHC are smaller compared to the measurements at the BNL Relativistic Heavy Ion Collider, and as such, closer to what has been theoretically predicted for the formation of a quark-gluon plasma.",

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AU - Abelev, B.

AU - Adam, J.

AU - Adamova, D.

AU - Adare, A.M.

AU - Aggarwal, M.M.

AU - Bearden, Ian

AU - Bøggild, Hans

AU - Bilandzic, Ante

AU - Christensen, Christian Holm

AU - Dalsgaard, Hans Hjersing

AU - Gaardhøje, Jens Jørgen

AU - Gulbrandsen, Kristjan Herlache

AU - Hansen, Alexander Colliander

AU - Nielsen, Børge Svane

AU - Nygaard, Casper

AU - Søgaard, Carsten

PY - 2013/4/10

Y1 - 2013/4/10

N2 - We report the first measurement of the net-charge fluctuations in Pb-Pb collisions at √sNN=2.76 TeV, measured with the ALICE detector at the CERN Large Hadron Collider. The dynamical fluctuations per unit entropy are observed to decrease when going from peripheral to central collisions. An additional reduction in the amount of fluctuations is seen in comparison to the results from lower energies. We examine the dependence of fluctuations on the pseudorapidity interval, which may account for the dilution of fluctuations during the evolution of the system. We find that the fluctuations at the LHC are smaller compared to the measurements at the BNL Relativistic Heavy Ion Collider, and as such, closer to what has been theoretically predicted for the formation of a quark-gluon plasma.

AB - We report the first measurement of the net-charge fluctuations in Pb-Pb collisions at √sNN=2.76 TeV, measured with the ALICE detector at the CERN Large Hadron Collider. The dynamical fluctuations per unit entropy are observed to decrease when going from peripheral to central collisions. An additional reduction in the amount of fluctuations is seen in comparison to the results from lower energies. We examine the dependence of fluctuations on the pseudorapidity interval, which may account for the dilution of fluctuations during the evolution of the system. We find that the fluctuations at the LHC are smaller compared to the measurements at the BNL Relativistic Heavy Ion Collider, and as such, closer to what has been theoretically predicted for the formation of a quark-gluon plasma.

U2 - 10.1103/PhysRevLett.110.152301

DO - 10.1103/PhysRevLett.110.152301

M3 - Journal article

C2 - 25167254

SN - 0031-9007

VL - 110

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

M1 - 152301

ER -

Net-Charge Fluctuations in Pb-Pb Collisions at root s(NN)=2.76 TeV

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