Recent heavy flavor results from STAR

TL;DR

This paper reports recent heavy flavor measurements from the STAR experiment, showing charm production scales with binary collisions, B suppression in heavy-ion collisions, and new $$psilon cross section data.

Contribution

It provides new experimental data on charm and bottom suppression and $$psilon production, enhancing understanding of quark-gluon plasma effects.

Findings

Charm cross section scales with binary collisions.

Strong suppression of non-photonic electrons at high $ ext{p}_T$ in Au+Au.

Measurement of $$psilon cross section in p+p collisions.

Abstract

We report on recent heavy flavor measurements from the STAR experiment at RHIC. The measured charm cross section in heavy-ion collisions scales with the number of binary collisions, which is an indication for exclusive charm production in the initial state of the collision. The observed strong suppression of non-photonic electrons at high $\pt$ in Au+Au collisions together with the azimuthal correlation measurements in p+p collisions imply a suppression of $B$ production in heavy-ion collisions. We also present recent measurements of the $\Upsilon$ cross section in p+p collisions.