QGP Model

In a simple model of a QGP the quark combinations $u\bar{u}$, $u\bar{d}$, $d\bar{u}$ and $d\bar{d}$ hadronize into pions with the same probability. From each quark pair two or three pions are created, simplifying this model further. Probabilities for the different combinations of pions are chosen to yield an equal amount of $\pi^+$, $\pi^-$ and $\pi^0$. The angular (azimuthal) separation between the pions are gaussian distributed with a width of 10. The result, shown in fig. 3.8, is compared to the case with pure global charge conservation, and a drastic decrease of the fluctuations is seen.

Figure 3.8: $v(Q)$ as a function of acceptance, for a simple model of a QGP. The result is compared to the case with global charge conservation from fig. 3.2.