Analyse Spectrale Et Analyse Chaotique Des Ronflements

Beyond mean field confrontation of different models with high transverse momentum proton spectra

“…As a consequence, these simulations are expected to be reliable for quadrupole fluctuations or for dynamical situations dominated by quadrupole fluctuations, so that a restriction to the "collective" fluctuations is reasonable. As shown in [17] grid simulations in restricted model space indeed validate quadrupole fluctuations as calculated in the projection method used here (see table 1 of [17]). In turn, differences show up in the high momentum tail of the distribution function, which are, as expected, not necessary accounted for in a multipole-based method of reinjection of fluctuations.…”

“…It should be noted that the estimates of [11] rely on a schematic model, built from BL simulations based on quadrupole fluctuations. Only characteristics of the quadrupole do serve as inputs of the model, which can thus be considered as numerically safe (see the above discussions on [17] and internal checks, for example with respect to BUU, as presented in [11]). The model of [11] is thus, by construction, highly collective: it presumably exhausts a sizeable part of the collective source of kaon yield.…”

“…Out of the distribution of new trajectories one is chosen by a Monte Carlo procedure and propagated to the next time step where the procedure repeats itself. There are different ways to realize this procedure in numerical simulations [17]. Only one of these propositions has been developed to a simulation program which allows quantitative comparisons with experiments [16].…”