Coherent psi ( 2 S ) photo - production in ultra - peripheral Pb - Pb collisions at root s ( NN ) = 2 . 76

Heavy flavour measurements in Pb – Pb collisions at √ s NN = 2 . 76 TeV with the ALICE experiment

The ALICE experiment measured the charm and beauty production in the semi-leptonic decay channels (electrons at mid-rapidity and muons at forward rapidities) and the D meson production in the hadronic decay channels at mid-rapidity in lead-lead collisions at √ s NN = 2.76 TeV and proton-proton collisions at √ s = 7 TeV and √ s = 2.76 TeV. The resulting nuclear modification factors will be prese...

Recent results on ultra-peripheral Pb-Pb and p-Pb collisions at the ALICE experiment

In this paper, we will discuss results on coherent and incoherent J/ψ photoproduction in ultra-peripheral Pb-Pb collisions at √ sNN = 2.76, as well as preliminary results on exclusive J/ψ and two-photon production in ultra-peripheral p-Pb collisions at √ sNN = 5.02 TeV. Results on four-pion production in ultra-peripheral Pb-Pb collisions will also be given. Finally, the prospects for other UPC ...

First results on the event – by – event fluctuations and correlations in Pb – Pb collisions at √ s NN = 2 . 76 TeV

Fluctuations of thermodynamic quantities are fundamental for the study of the QGP phase transition. Among several observables calculated on an event–by–event basis, the different measures of the charge and mean transverse momentum fluctuations are of particular interest since they are considered to be indicators of the existence and of the order of this transition as well as of the thermalizati...

892 ) ( 0 ) and phi ( 1020 ) meson production at high transverse momentum in pp and Pb - Pb collisions at root sNN = 2 . 76

10 43 v 1 2 3 Ja n 20 07 Are High - p T Pions Suppressed in Pb + Pb Collisions at √ s NN = 17 . 3 GeV ?

Transverse momentum spectra of neutral pions in the range 0.7 < p T < 3.2 GeV/c have been measured at 2.3 η 3.0 by the WA98 experiment in p+C and p+Pb collisions at √ s NN = 17.3 GeV. Scaled by the number of nucleon-nucleon collisions (N coll) the π 0 yields in p+C and p+Pb at p T ≈ 2.0−2.5 GeV/c are higher than the respective yields in central Pb+Pb collisions with N part 300. This observation...