Physics with the upgraded CERES detector

Authors
Citation
H. Appelshauser, Physics with the upgraded CERES detector, ACT PHY P B, 29(11), 1998, pp. 3153-3159
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
0587-4254 → ACNP
Volume
29
Issue
11
Year of publication
1998
Pages
3153 - 3159
Database
ISI
SICI code
0587-4254(199811)29:11<3153:PWTUCD>2.0.ZU;2-R
Abstract
The possible occurance of a phase transition from hadronic to quark matter and a related restoration of chiral symmetry have been predicted within the framework of QCD. On the experimental side the investigation of dilepton p roduction in heavy ion collisions is of particular interest, because electr omagnetic radiation escapes the reaction volume without final state interac tions and, therefore, provides information about the early hot and dense st age of the reaction. The significant enhancement of the dilepton yield obse rved in S+Au and Pb+Au collisions at SPS energies cannot be explained witho ut the inclusion of non-trivial modifications of the in-medium properties o f the vector mesons. To discriminate between different theoretical approach es, an improvement of the experimental data in terms of mass resolution and statistics is needed. For this purpose, the CERES detector at the CERN-SPS will be upgraded with a radial drift TPC located downstream of the existin g spectrometer.