Directed flow in ultrarelativistic heavy-ion collisions

Journal Article · Sat May 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.054902· OSTI ID:21389042

Bozek, Piotr ^[1]; Wyskiel, Iwona ^[1]

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1. H. Niewodniczanski Institute of Nuclear Physics, PL-31-342 Krakow (Poland)

We study the generation of the directed flow in the hydrodynamic expansion of hot matter formed in ultrarelativistic heavy-ion collisions at sq root(s)=200 GeV. The experimentally observed negative-directed flow in a wide range of central pseudorapidities is reproduced, assuming that the fireball is tilted away from the collision axis. The tilt of the source is consistent with a preferential emission in the forward-backward hemisphere from forward-backward participating nucleons. The model reproduces the experimentally observed scaling of the directed flow when going from Au-Au to Cu-Cu systems.

• OSTI ID: 21389042
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 5; Other Information: DOI: 10.1103/PhysRevC.81.054902; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ATOM-ATOM COLLISIONS
COLLISIONS
COPPER
EMISSION
EXPANSION
GEV RANGE 100-1000
GOLD
HEAVY ION REACTIONS
NUCLEONS
PARTICLE RAPIDITY
RELATIVISTIC RANGE
SCALING
SIMULATION
ATOM COLLISIONS
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FERMIONS
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HADRONS
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PARTICLE PROPERTIES
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