Speaker
Description
Previous measurements in small systems indicate that the modifications to jets relative to p+p collisions is small. However, looking at more differential measurements may reveal if any modifications do exist. In particular, we compare $\pi^0$-hadron correlations measured with PHENIX in small systems to those observed in p+p collisions to probe any initial state effects. Several systematic uncertainties cancel when comparing the ratio of the awayside yield to the nearside yield in d+Au and $^3$He+Au systems to p+p revealing a quantifiable modification in these systems. In addition, $p_{out}$ distributions for the p+A collisions is measured. An increasing trend in the width of the $p_{out}$ distributions in p+Al and p+Au compared to p+p is observed as a function of $N_{coll}$. The potential implications of these measurements in conjunction with the PHENIX results for reconstructed jets in small systems will be discussed.
