Observation of vertex factorisation breaking in central pp interactions

Central \pipi events produced in pp interactions are studied in terms of correlations between the outgoing protons. It is observed there is more $\rho^{0}$(770) and \fmeson production in reactions where the outgoing protons %fastest and slowest particles in the laboratory frame are on opposite sides of the beam. This effect is not attributable to the trigger or the experimental acceptance, and suggests that the vertices do not factorise

Conceptual Project of the Barrel and End-Cap Electromagnetic Calorimeters of the ALICE

A conceptual integration project of the Barrel (BARC) and Near End-Cap (NEC) electromagnetic calorimeters as well as the photon spectrometer (PHOS) are presented. The design of the BARC and NEC calorimeters is based on a novel sandwich-type BAYAN technology. The PHOS detector is designed of new heavy crystals. A conception of the joint mechanical support for BARC, PHOS and NEC detectors is proposed and developed

Scintillator Barrel Detector of the ALICE Experiment

The Scintillator Barrel (ScB) is the first level trigger detector whose task is to cover the central region of the ALICE setup. The physical goals of the ScB, its construction, electronics and trigger performance as well as results of the ScB prototype tests are described in detail