Collective flow in Ar+KCl at 1. 8 GeV/nucleon

Journal Article · Sun Jun 01 04:00:00 EDT 1986 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.33.2191· OSTI ID:5522764

Jaqaman, H R

The failure of the standard sphericity tensor analysis to detect any significant collective flow effect in Ar+KCl at 1.8A GeV is examined in light of the success of the transverse momentum analysis technique suggested by Danielewicz and Odyniec in exhibiting collective flow in the same system. It is argued, using a simple estimate which takes into consideration the main features of the data, that the failure of the sphericity analysis is attributable to the dominant contribution of the longitudinal momentum of the spectators which has nothing to do with the collective effects for which sphericity analysis is designed. The exclusion of the spectators from the sphericity tensor leads to a clear signal from the collective transverse flow of the participants whenever such a flow takes place.

• Research Organization: Physics Department, Birzeit University, Birzeit, West Bank via Israel
• OSTI ID: 5522764
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 33:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
653007 -- Nuclear Theory-- Nuclear Models-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METAL COMPOUNDS
ARGON
CHARGED-PARTICLE REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COLLECTIVE MODEL
ELEMENTS
ENERGY
ENERGY RANGE
FLUIDS
GASES
GEV RANGE
GEV RANGE 10-100
HALIDES
HALOGEN COMPOUNDS
HEAVY ION REACTIONS
KINETIC ENERGY
LINEAR MOMENTUM
MATHEMATICAL MODELS
MULTIPLICITY
NONMETALS
NUCLEAR MODELS
NUCLEAR REACTIONS
PARTICLE PROPERTIES
PARTICLE RAPIDITY
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
RARE GASES
TENSOR FORCES
TRANSVERSE MOMENTUM