Directed and elliptic flow in Au-197 + Au-197 at intermediate energies

Lukasik, J.; Auger, G.; Begemann-Blaich, M.L.; Bellaize, N.; Bittiger, R.; Bocage, F.; Borderie, B.; Bougault, R.; Bouriquet, B.; Charvet, J.L.

doi:10.1016/j.physletb.2004.12.076

Directed and elliptic flow in Au-197 + Au-197 at intermediate energies

J. Lukasik
(
- Darmstadt, GSI and
- Cracow, INP
)
,
G. Auger
,
M.L. Begemann-Blaich
,
N. Bellaize
,
R. Bittiger

Oct, 2004

12 pages

Published in:

Phys.Lett.B 608 (2005) 223-230

e-Print:

nucl-ex/0410030 [nucl-ex]

DOI:

10.1016/j.physletb.2004.12.076

Report number:

DAPNIA-05-32

Experiments:

View in:

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reference search101 citations

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Abstract:

Directed and elliptic flow for the Au + Au system at incident energies between 40 and 150 MeV per nucleon has been measured using the INDRA 4 pi multi-detector. For semi-central collisions, the elliptic flow of Z <= 2 particles switches from in-plane to out-of-plane enhancement at around 100 MeV per nucleon, in good agreement with the result reported by the FOPI Collaboration. The directed flow changes sign at a bombarding energy between 50 and 60 MeV per nucleon and remains negative at lower energies. The conditions for the appearance and possible origins of negative flow are discussed.

Note:

12 pages, 6 eps figures, elsart, submitted to Phys. Lett. B Journal-ref: Phys. Lett. B 608(2005)223 DOI: 10.1016/j.physletb.2004.12.076

25.70.Mn
25.70.Pq
25.40.Sc
Symmetric heavy ion collision
Squeeze-out
Directed flow
Elliptic flow

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