Transverse energy and neutral pion spectra obtained from /sup 16/O- and /sup 32/S-induced reactions at 200 GeV/nucleon

Conference · Sun Jan 01 04:00:00 EST 1989

OSTI ID:6129141

Plasil, F; Albrecht, R; Awes, T C; Baktash, C; Beckmann, P; Berger, F; Bock, R; Claesson, G; Clewing, G; Dragon, L

The main goal of the CERN heavy-ion experiments is the search for an indication that the predicted state of deconfined quarks and gluons, the quark-gluon plasma (QGP), has been produced. The most promising indication that this may, in fact, be the case comes from the NA38 dimuon measurements, which are focused on the question of J//psi/ suppression. This effect was predicted to be one of the signatures of QGP formation before any measurements were made, and it is the subject of the two other talks at this conference that deal with nucleus-nucleus reactions at ultrarelativistic energies. In this presentation we consider the general (global) features of heavy-ion reactions at CERN energies, and we examine the degree to which they differ from mere superpositions of nucleon-nucleon collisions. We discuss the present status of our data analysis and our main conclusions from the first round of CERN experiments with emphasis on transverse energy measurements, on attained energy densities, and on the spectra of produced neutral pions. Because of time limitations we will not discuss our measurements of distributions of charged particles and the analysis of these distributions in terms of fluctuations nor the results that we have obtained with the Plastic Ball on the behavior of target spectator matter. 20 refs., 5 figs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6129141
• Report Number(s): CONF-8901120-3; ON: DE89013058
• Country of Publication: United States
• Language: English

Related Subjects

651920* -- Nuclear Properties & Reactions
A=190-219
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON-BARYON INTERACTIONS
BOSONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY
ENERGY DENSITY
GOLD 197 TARGET
HADRON-HADRON INTERACTIONS
HADRONS
HEAVY ION REACTIONS
INTERACTIONS
KINETIC ENERGY
LINEAR MOMENTUM
MESONS
NUCLEAR REACTIONS
NUCLEON-NUCLEON INTERACTIONS
OXYGEN 16 REACTIONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PARTICLE RAPIDITY
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
QUARK-GLUON INTERACTIONS
SULFUR 32 REACTIONS
TARGETS
TRANSVERSE ENERGY
TRANSVERSE MOMENTUM