Addendum: Dielectron production in proton-proton and proton-lead collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV

TL;DR

This addendum updates the charm cross section measurements in proton-proton and proton-lead collisions at 5.02 TeV using new fragmentation fractions, refining previous dielectron production results.

Contribution

It provides an updated charm cross section value in the context of dielectron production analysis at LHC energies, incorporating recent fragmentation fraction data.

Findings

Updated charm cross section at midrapidity

Refined dielectron production analysis results

Improved agreement with recent fragmentation data

Abstract

This is an addendum to the article [arXiv:2005.11995] "Dielectron production in proton-proton and proton-lead collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV" published in Phys. Rev. C 102 no. 5, (2020) 055204. We update the extracted charm cross section at midrapidity given in Table 3 and Figure 4 (left) of the original publication with the fragmentation fractions of charm quarks in pp collisions published in Phys. Rev. D 105 (2022) L011103.