Study of the $\eta$ to ${\pi }^0$ Ratio in Heavy-Ion Collisions

Yuanjie Ren, Axel Drees

We demonstrate that the $p_T$ dependence of the $\eta /{\pi }^0$ ratio is universal within a few percent for high energy $p$+$p$, $p$+A and $d$+A collisions, over a broad range of collision…