Review of the heavy ion physics sessions

Conference · Tue Jan 01 00:00:00 EST 1991

DOI:https://doi.org/10.1063/1.41558· OSTI ID:5450874

Jacak, B V

The parallel sessions on Heavy Ion Physics covered several areas of recent progress in characterizing the nuclear equation of state and the search for deconfined quark matter. Studies of systems from 1 to several hundred GeV/nucleon have been made in order to map the behavior of nuclear matter over a wide range of temperatures and pressures. We have also considered results from proton-nucleus reactions in the heavy ion physics discussions. This should help untangle nuclear effects'' due to the presence of relatively undisturbed nuclear matter from observables arising in the hot, dense part of the system. Even though heavy ion physics covers a large range of bombarding energies, the same two basic questions must be answered. The first problem is to characterize the system that has been produced. We need to determine the energy density, lifetime, temperature and baryon density reached in the collision before expansion and particle production. Then we may address the second issue and look for evidence of new physics. At this meeting, we heard new results from experiments, and theoretical analyses which strive to explain all available data, including those from proton-nucleus collisions. We explored heavy quark production, which may indicate quark matter through color screening of c{bar c} pairs. We heard new results in strangeness production, which has been predicted to be enhanced if quark matter is formed. There were also discussions of jets and minijets, which may probe the hot, dense matter existing early in the collision.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5450874
• Report Number(s): LA-UR-91-2846; CONF-9105225-3; ON: DE91017828
• Resource Relation: Journal Volume: 243; Conference: 14. international radiocarbon conference, Tucson, AZ (United States), 20-24 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HEAVY ION REACTIONS
NUCLEAR MATTER
EQUATIONS OF STATE
QUARK MATTER
BARYONS
BOSE-EINSTEIN STATISTICS
INTERFEROMETRY
J PSI-3097 MESONS
JET MODEL
LEPTONS
PARTICLE PRODUCTION
PARTICLE RAPIDITY
PROTON REACTIONS
STRANGE PARTICLES
BARYON REACTIONS
BOSONS
CHARGED-PARTICLE REACTIONS
CHARMONIUM
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
HADRON REACTIONS
HADRONS
MATHEMATICAL MODELS
MATTER
MESONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
QUARKONIUM
VECTOR MESONS
651000* - Nuclear Physics
653003 - Nuclear Theory- Nuclear Reactions & Scattering
653002 - Nuclear Theory- Nuclear Matter
645100 - High Energy Physics- Particle Interactions & Properties-Experimental
645200 - High Energy Physics- Particle Interactions & Properties-Theoretical