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Net-Charge Fluctuations in Pb-Pb collisions at \sqrt(s)_NN = 2.76 TeV

Abstract : We report the first measurement of the net-charge fluctuations in Pb-Pb collisions at \surd 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 pseudo-rapidity interval, which may account for the dilution of fluctuations during the evolution of the system. We find that the ALICE data points are between the theoretically predicted values for a hadron gas and a Quark-Gluon Plasma.
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http://hal.in2p3.fr/in2p3-00720872
Contributor : Emmanuelle Vernay <>
Submitted on : Thursday, July 26, 2012 - 8:33:06 AM
Last modification on : Wednesday, December 2, 2020 - 12:04:03 PM

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B. Abelev, N. Arbor, G. Conesa Balbastre, J. Faivre, C. Furget, et al.. Net-Charge Fluctuations in Pb-Pb collisions at \sqrt(s)_NN = 2.76 TeV. Physical Review Letters, American Physical Society, 2013, 110, pp.152301. ⟨10.1103/PhysRevLett.110.152301⟩. ⟨in2p3-00720872⟩

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