188 citations · 1.5k across the 28 of their papers we have counts for
28 papers
Wide acceptance measurement of the K/K ratio from Ni+Ni collisions at 1.91A GeV
K. Piasecki, N. Herrmann, R. Averbeck +70
The FOPI Collaboration at the GSI SIS-18 synchrotron measured charged kaons from central and semi-central collisions of Ni+Ni at a beam energy of 1.91A GeV. We present the distribu…
Determination of N* amplitudes from associated strangeness production in p+p collisions
R. Münzer, L. Fabbietti, E. Epple +65
We present the first determination of the energy-dependent production amplitudes of N resonances with masses between 1650 MeV/c and 1900 MeV/c for an excess energ…
Influence of mesons on negative kaons in Ni+Ni collisions at 1.91A GeV beam energy
K. Piasecki, N. Herrmann, R. Averbeck +63
and K mesons from Ni+Ni collisions at the beam energy of 1.91A GeV have been measured by the FOPI spectrometer, with a trigger selecting central and semi-central events amo…
Azimuthal Emission Patterns of and of Mesons in Ni + Ni Collisions near the Strangeness Production Threshold
V. Zinyuk, T. I. Kang, Y. Leifels +62
Azimuthal emission patterns of mesons have been measured in Ni + Ni collisions with the FOPI spectrometer at a beam kinetic energy of 1.91 A GeV. The transverse momentum $p…
SiViO: A Trigger for -Hyperons
Robert Muenzer, Martin Berger, Laura Fabbietti
As online trigger for events containing hyperons in p+p collisions at a silicon-based device has been designed and built. This system has been integrated cl…
Systematics of azimuthal asymmetries in heavy ion collisions in the 1 A GeV regime
FOPI Collaboration, W. Reisdorf, Y. Leifels +51
Using the large acceptance apparatus FOPI, we study central and semi-central collisions in the reactions (energies in A GeV are given in parentheses): 40Ca+40Ca (0.4, 0.6, 0.8, 1.0…
Measurement of and mesons in Al+Al collisions at 1.9 GeV
X. Lopez, N. Herrmann, K. Piasecki
New measurement of sub-threshold and production is presented. The experimental data complete the measurement of strange particles produced in Al+Al collisions at…
Systematics of central heavy ion collisions in the 1A GeV regime
FOPI Collaboration, W. Reisdorf, A. Andronic +51
Using the large acceptance apparatus FOPI, we study central collisions in the reactions (energies in A GeV are given in parentheses): 40Ca+40Ca (0.4, 0.6, 0.8, 1.0, 1.5, 1.93), 58N…
Measurement of the in-medium K0 inclusive cross section in pi- -induced reactions at 1.15 GeV/c
M. L. Benabderrahmane, N. Herrmann, K. Wisniewski +62
The K0 meson production by pi- mesons of 1.15 GeV/c momentum on C, Al, Cu, Sn and Pb nuclear targets was measured with the FOPI spectrometer at the SIS accelerator of GSI. Inclusiv…
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…
Nuclear stopping from 0.09A GeV to 1.93A GeV and its correlation to flow
FOPI Collaboration, W. Reisdorf
We present a complete systematics (excitation functions and system-size dependences) of global stopping and sideflow for heavy ion reactions in the energy range between 0.09A GeV a…
Azimuthal dependence of collective expansion for symmetric heavy ion collisions
G. Stoicea, M. Petrovici, A. Andronic +40
Detailed studies of the azimuthal dependence of the mean fragment and flow energies in the Au+Au and Xe+CsI systems are reported as a function of incident energy and centrality. Co…
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…
Sideward flow of K+ mesons in Ru+Ru and Ni+Ni reactions near threshold
P. Crochet, N. Herrmann, K. Wisniewski +2
Experimental data on K+ meson and proton sideward flow measured with the FOPI detector at SIS/GSI in the reactions Ru+Ru at 1.69 AGeV and Ni+Ni at 1.93 AGeV are presented. The K+ s…
Isospin-tracing: A probe of non-equilibrium in central heavy-ion collisions
F. Rami, Y. Leifels, B. de Schauenburg +3
Four different combinations of Ru and Zr nuclei, both as projectile and target, were investigated at the same bombarding energy of 400 MeV using a …
On the Space-Time Difference of Proton and Composite Particle Emission in Central Heavy-Ion Reactions at 400 AMeV
R. Kotte, H. W. Barz, C. Plettner +3
Small-angle correlations of pairs of nonidentical light charged particles produced in central collisions of heavy ions in the A=100 mass region at a beam energy of 400 AMeV are inv…
Flow angle from intermediate mass fragment measurements
F. Rami, P. Crochet, R. Dona +3
Directed sideward flow of light charged particles and intermediate mass fragments was measured in different symmetric reactions at bombarding energies from 90 to 800 AMeV. The flow…
Identification of baryon resonances in central heavy-ion collisions at energies between 1 and 2 AGeV
M. Eskef, D. Pelte, FOPI collaboration
The mass distributions of baryon resonances populated in near-central collisions of Au on Au and Ni on Ni are deduced by defolding the spectra of charged pions by a method wh…
Azimuthal Anisotropies as Stringent Test for Nuclear Transport Models
P. Crochet, F. Rami, R. Dona +1
Azimuthal distributions of charged particles and intermediate mass fragments emitted in Au+Au collisions at 600AMeV have been measured using the FOPI facility at GSI-Darmstadt. Dat…
Onset of Nuclear Matter Expansion in Au+Au Collisions
P. Crochet, F. Rami, A. Gobbi +2
Using the FOPI detector at GSI Darmstadt, excitation functions of collective flow components were measured for the Au+Au system, in the reaction plane and out of this plane, at sev…
Abundance of Delta Resonances in 58Ni+58Ni Collisions between 1 and 2 AGeV
FOPI Collaboration, B. Hong, N. Herrmann +59
Charged pion spectra measured in 58Ni-58Ni collisions at 1.06, 1.45 and 1.93 AGeV are interpreted in terms of a thermal model including the decay of Delta resonances. The transvers…