Relativistic hydrodynamics of partially stopped baryonic matter

Journal Article · Sun Nov 01 04:00:00 EST 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.46.2047· OSTI ID:7156841

Bolz, J; Ornik, U; Weiner, R M ^[1]

---

1. Physics Department, University of Marburg, Marburg (Germany) Theoretical Divison, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

Relativistic hydrodynamics including final-state interactions is used for a detailed description of the experimental data on particle spectra of sulphur-sulphur collisions at 200{ital A} GeV from the NA35 Collaboration. Under the assumption of thermalization of the entire detected baryonic matter it is found that a consistent reproduction of both pion and proton spectra requires strong stopping as an initial condition for the expanding fireball. The results from these calculations are then used to extract a transverse radius which includes also contributions from the decay of unstable particle resonances. Its value is found to be rapidity dependent within the range of 3--4 fm, which agrees with experimental results from Bose-Einstein correlations. In addition, the analysis of the strange particle distribution indicates chemical equilibrium for {ital K}{sup 0} and {Lambda} particles.

• OSTI ID: 7156841
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 46:5; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOSONS
CHARGED-PARTICLE REACTIONS
DEEP INELASTIC HEAVY ION REACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
HADRONS
HEAVY ION REACTIONS
HYDRODYNAMIC MODEL
MATHEMATICAL MODELS
MATTER
MESONS
NUCLEAR MATTER
NUCLEAR REACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PIONS
PROTON SPECTRA
PSEUDOSCALAR MESONS
RELATIVISTIC RANGE
SPECTRA
STATISTICAL MODELS
STRANGE PARTICLES
SULFUR 32 REACTIONS
SULFUR 32 TARGET
TARGETS
TEV RANGE
TEV RANGE 01-10
THERMODYNAMIC MODEL