INDRA@GSI: collective flow in Au+Au collisions

Authors :: Lukasik, J.
Trautmann, W.
Auger, G.
Begemann-Blaich, M.L.
Bellaize, N.
Bittiger, R.
Bocage, F.
Borderie, B.
Bougault, R.
Bouriquet, B.
Charvet, J.L.
Chbihi, A.
Dayras, R.
Durand, D.
Frankland, J.D.
Galichet, E.
Gourio, D.
Guinet, D.
Hudan, S.
Hurst, B.
Source :: Progress in Particle & Nuclear Physics. Jul2004, Vol. 53 Issue 1, p77-80. 4p.
Publication Year :: 2004
Abstract: Directed flow in symmetric heavy ion collisions has been studied using the 197Au+ 197Au reactions at incident energies between 40 and 150 A MeV. The reactions have been measured with the <f>4π</f> multi-detector INDRA at the GSI facility. In particular, the bombarding energy at which the elliptic flow switches from in-plane to out-of-plane enhancement has been determined to be clearly above 100 A MeV in good agreement with the result obtained by the FOPI Collaboration. The new data also allows to extend the experimental excitation function of <f>v2</f> to lower energies. [Copyright &y& Elsevier]