Exploratory studies on relativistic heavy-ion central collisions

Journal Article · Sun Apr 05 23:00:00 EST 1981 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.46.898· OSTI ID:6405296

Lu, J J; Beavis, D; Fung, S Y; Gorn, W; Huie, A; Kiernan, G P; Poe, R T; VanDalen, G

Central nuclear collisions are studied with a 1.8-GeV/N /sup 40/Ar beam incident on a Pb target. Momentum and angular distributions of negative pions infer a pion temperature of 86.6 +- 3.9 MeV, and a pion-nucleon ratio of 0.21--0.24. The pion multiplicity suggests a suppression of high multiplicity events and a non-Poisson distribution. Pion interferometry analyses are performed; the relationship between pion multiplicity and the collision impact parameter is examined.

• Research Organization: Department of Physics, University of California, Riverside, California 92521
• DOE Contract Number: AT03-80ER10626
• OSTI ID: 6405296
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 46:14; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
651925 -- Nuclear Properties & Reactions
A=190-219
Experimental-- Nuclear Reactions & Scattering-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ARGON 40 REACTIONS
BOSONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DISTRIBUTION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EXPERIMENTAL DATA
FIELD THEORIES
GENERAL RELATIVITY THEORY
GEV RANGE
GEV RANGE 10-100
HADRONS
HEAVY ION REACTIONS
INELASTIC SCATTERING
INFORMATION
LEAD
LINEAR MOMENTUM
MESONS
METALS
MULTIPLICITY
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE PRODUCTION
PIONS
PSEUDOSCALAR MESONS
RELATIVITY THEORY
SCATTERING
TRANSVERSE MOMENTUM