Orateur
Description
Studying heavy-flavor production in heavy-ion collisions (HIC) can improve our understanding of parton interactions with the Quark-Gluon Plasma (QGP). Due to their significant mass, heavy quarks (charm and bottom) are mainly produced in the initial phase of high-energy HIC, when hard scatterings are prevalent, and thus experience the entire evolution of the QGP. One way to study heavy quarks is to measure Heavy-Flavor Electrons (HFE) - electrons emitted from the semi-leptonic decays of heavy-flavor hadrons.
In this contribution, we will present the HFE measurement at low transverse momentum ($p_{\rm{T}}$) in Au+Au collisions at $\sqrt{s_{NN}}$ = 54.4 GeV using data taken in 2017 by the STAR experiment. The strong HFE suppression was already observed in the central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. The measurement of heavy-flavor quark central-to-peripheral nuclear modification factors below the RHIC top energy will provide new insights into the collisional energy loss that is dominant at low $p_{\rm T}$ and will complement the existing results at $\sqrt{s_{NN}}$ = 200 GeV and the recent HFE elliptic flow measurement at $\sqrt{s_{NN}}$ = 54.4 GeV.
