Anisotropy as a signature of transverse collective flow
Journal Article
·
· Physical Review, D (Particles Fields); (United States)
- Service de Physique Theorique, Centre d'Etudes de Saclay, F-91191 Gif-sur-Yvette CEDEX (France)
We show that anisotropies in transverse-momentum distributions provide an unambiguous signature of transverse collective flow in ultrarelativistic nucleus-nucleus collisions. We define a measure of the anisotropy from experimental observables. The anisotropy coming from collective effects is estimated quantitatively using a hydrodynamical model, and compared to the anisotropy originating from finite multiplicity fluctuations. We conclude that collective behavior could be seen in Pb-Pb collisions if a few hundred particle momenta were measured in a central event.
- OSTI ID:
- 7277652
- Journal Information:
- Physical Review, D (Particles Fields); (United States), Vol. 46:1; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HEAVY ION REACTIONS
NUCLEAR FRAGMENTATION
COLLECTIVE MODEL
EIGENVALUES
EIGENVECTORS
EQUATIONS OF STATE
HYDRODYNAMIC MODEL
IMPACT PARAMETER
KINETIC ENERGY
LEAD
MULTIPLICITY
NUCLEON-NUCLEON INTERACTIONS
PHASE TRANSFORMATIONS
QUARK MATTER
RELATIVISTIC RANGE
STATISTICAL MODELS
TRANSVERSE MOMENTUM
BARYON-BARYON INTERACTIONS
CHARGED-PARTICLE REACTIONS
ELEMENTS
ENERGY
ENERGY RANGE
EQUATIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
MATTER
METALS
NUCLEAR MODELS
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
THERMODYNAMIC MODEL
662340* - Hadron Interactions- (1992-)
662240 - Models for Strong Interactions- (1992-)
HEAVY ION REACTIONS
NUCLEAR FRAGMENTATION
COLLECTIVE MODEL
EIGENVALUES
EIGENVECTORS
EQUATIONS OF STATE
HYDRODYNAMIC MODEL
IMPACT PARAMETER
KINETIC ENERGY
LEAD
MULTIPLICITY
NUCLEON-NUCLEON INTERACTIONS
PHASE TRANSFORMATIONS
QUARK MATTER
RELATIVISTIC RANGE
STATISTICAL MODELS
TRANSVERSE MOMENTUM
BARYON-BARYON INTERACTIONS
CHARGED-PARTICLE REACTIONS
ELEMENTS
ENERGY
ENERGY RANGE
EQUATIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
MATTER
METALS
NUCLEAR MODELS
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
THERMODYNAMIC MODEL
662340* - Hadron Interactions- (1992-)
662240 - Models for Strong Interactions- (1992-)