12 papers
Excitation function of elliptic flow in Au+Au collisions and the nuclear matter equation of state
A. Andronic, FOPI Collaboration
We present measurements of the excitation function of elliptic flow at midrapidity in Au+Au collisions at beam energies from 0.09 to 1.49 GeV per nucleon. For the integral flow, we…
Directed flow in Au+Au, Xe+CsI and Ni+Ni collisions and the nuclear equation of state
FOPI Collaboration, A. Andronic
We present new experimental data on directed flow in collisions of Au+Au, Xe+CsI and Ni+Ni at incident energies from 90 to 400A MeV. We study the centrality and system dependence o…
Sub-threshold phi-meson yield in central 58Ni+58Ni collisions
A. Mangiarotti, N. Herrmann, P. R. Maurenzig +4
The -meson production cross section is measured for the first time at a sub-threshold energy of 1.93 AGeV in \nuc{58}{Ni}+\nuc{58}{Ni} central collisions. The data were obta…
Differential directed flow in Au+Au collisions
A. Andronic, FOPI Collaboration
We present experimental data on directed flow in semi-central Au+Au collisions at incident energies from 90 to 400 A MeV. For the first time for this energy domain, the data are pr…
Direct comparison of phase-space distributions of K- and K+ mesons in heavy-ion collisions at SIS energies - evidence for in-medium modifications of kaons ?
K. Wisniewski, P. Crochet, N. Herrmann
The ratio of K- to K+ meson yields has been measured in the systems RuRu at 1.69 A GeV, Ru+Zr at 1.69 A GeV, and Ni+Ni at 1.93 A GeV incident beam kinetic energy. The yield ratio i…
Transition from in-plane to out-of-plane azimuthal enhancement in Au+Au collisions
A. Andronic, G. Stoicea, M. Petrovici +1
The incident energy at which the azimuthal distributions in semi-central heavy ion collisions change from in-plane to out-of-plane enhancement, E_tran, is studied as a function of…