Introduction to Ultrarelativistic Heavy-ion Physics (1/3)

by Antinori, F (CERN)

Wednesday 16 Jul 2003, 11:15 → 12:00 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

Organiser(s): HR-RFA

Summary:
Colliding two heavy nuclei at ultrarelativistic energies allows to create in the laboratory a bulk system with huge density, pressure and temperature and to study its properties. It is estimated that in Pb-Pb collisions at CERN-SPS we reach over an appreciable volume an energy density which exceeds by more than a factor 20 that of normal nuclear matter. At such densities, the hadrons are so closely packed that they interpenetrate; novel physics phenomena are expected to appear. QCD predicts that under such conditions a phase transition from a system composed of colourless hadrons to a Quark-Gluon Plasma (QGP) should occur. A rich ultrarelativistic heavy-ion physics programme is under way both at BNL-AGS and at CERN-SPS since 1986. The results obtained so far have led CERN to officially announce “evidence for a new state of matter” last year. A long-range programme of heavy-ion physics at higher energies is under way (BNL-RHIC) and in preparation (CERN-LHC).

These lectures are meant as an introduction to the physics of Ultrarelativistic Heavy-Ion Collisions, from an experimentalist’s viewpoint. Theoretical issues will be dealt with in an “intuitive” manner.

Due to the available time, only a selection of experimental results, mostly from the CERN HI programme, will be discussed.

Prerequisite knowledge and references:
Basics of Summer Students' Programme in Particle Phisics

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