$e^+e^-$ pairs from open heavy flavor in $p$$+$$p$ and $d$$+$Au collisions at $\sqrt{s_{_{NN}}}$ = 200~GeV

The dielectron mass spectrum is a unique probe to directly access the different stages of a heavy-ion collision. The intermediate ($1< m_{e^+e^-}<3$ GeV/$c^2$) and high ($4