In this letter the distribution of slow target associated particles emitted in Au + Emulsion interactions at 11.6 A GeV/
c is studied. The three models RQMD, FRITIOF and VENUS are used for ...comparisons and especially their treatment of rescattering is investigated.
The production of neutral pions in 158AGeV Pb+Pb collisions has been studied in the WA98 experiment at the CERN SPS. Transverse momentum spectra are studied for the range 0.3 GeV/c mT-m0 4.0 GeV/c. ...The results for central collisions are compared to various models. The centrality dependence of the neutral pion spectral shape and yield is investigated. An invariance of the spectral shape and a simple scaling of the yield with the number of participating nucleons is observed for centralities with greater than about 30 participating nucleons which is most naturally explained by assuming an equilibrated system.
The mean transverse momentum of photons has been determined on an event by event basis in S + Au collisions at 200 A·GeV from the ratio of the measured electromagnetic transverse energy (
E
T
em) to ...the photon multiplicity (
N
γ
). The average value obtained is similar to that determined for the same system using spectroscopic techniques. The centrality dependence of the measured values are in agreement with the predictions of the VENUS event generator.
4
Now at: SUBATECH, Ecole des Mines, Nantes, France.
Pseudorapidity density and multiplicity distributions of charged particles produced in heavy-ion collisions at the BNL AGS have been studied. The multiplicity distributions and pseudorapidity ...distributions of shower particles in Au-induced interactions are presented and compared with model predictions from RQMD, FRITIOF and VENUS. It is shown that the widths of the pseudorapidity distributions of produced particles in central collisions are independent of the interacting system. The results from EMU01 have been compared, and found to agree, with the results from two other heavy-ion experiments, E802 and E814.
Pseudorapidity density and multiplicity distributions of charged particles produced in heavy-ion collisions at the BNL AGS have been studied. The multiplicity distributions and pseudorapidity ...distributions of shower particles in Au-induced interactions are presented and compared with model predictions from RQMD, FRITIOF and VENUS. It is shown that the widths of the pseudorapidity distributions of produced particles in central collisions are independent of the interacting system. The results from EMU01 have been compared, and found to agree, with the results from two other heavy-ion experiments, E802 and E814.
We present inelastic neutron scattering measurements on liquid mercury at
room temperature for wave numbers $q$ in the range 0.3 $< q <$ 7.0 \AA$^{-1}$.
We find that the energy halfwidth of the ...incoherent part of the dynamic
structure factor $S(q,E)$ is determinded by a self-diffusion process. The
halfwidth of the coherent part of $S(q, E)$ shows the characteristic behavior
expected for a cage diffusion process. We also show that the response function
at small wave numbers exhibits a quasi-elastic mode with a time scale
characteristic of cage diffusion, however, its intensity is larger by an order
of magnitude than what would be expected for cage diffusion. We speculate on a
scenario in which the intensity of the cage diffusion mode at small wave
numbers is amplified through a valence fluctuation mechanism.
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