Heavy Ions: Results from the Large Hadron Collider

Abstract

On November 8, 2010 the Large Hadron Collider (LHC) at CERN collided first stable beams of heavy ions (Pb on Pb) at center-of-mass energy of 2.76 TeV/nucleon. The LHC worked exceedingly well during its one month of operation with heavy ions, delivering about 10 microbarn-inverse of data, with peak luminosity reaching to $L_0=2\times 10^{25}{\mathrm{cm}}^{-2}{\mathrm{s}}^{-1}$ towards the end of the run. Three experiments, ALICE, ATLAS and CMS, recorded their first heavy ion data, which were analyzed in a record time. The results of the multiplicity, flow, fluctuations, and Bose-Einstein correlations indicate that the fireball formed in nuclear collisions at the LHC is hotter, lives longer, and expands to a larger size at freeze-out as compared to lower energies. We give an overview of these as well as new results on quarkonia and heavy flavour suppression, and jet energy loss.

Proceedings of Lepton-Photon 2011 Conference, to be published in Pramana, Journal of Physics. 15 pages

References in corpus (4)

• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• Measurement of the centrality dependence of the charged particle pseudorapidity distribution in lead-lead collisions at sqrt(s_NN) = 2.76 TeV with the ATLAS detector
• J/Psi production at forward rapidity in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV, measured with the ALICE detector
• Quarkonia production at forward rapidity in Pb+Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}=2.76$ TeV with the ALICE detector

Cited by in corpus (4)

• Casimir scaling and renormalization of Polyakov loops in large-N gauge theories
• Structure formation during phase transitions in strongly interacting matter
• Fluctuations in non-ideal pion gas with dynamically fixed particle number
• Charge and isospin fluctuations in a non-ideal pion gas with dynamically fixed particle number