Measurement of electrons from heavy-flavour hadron decays in pp and p-Pb collisions with ALICE

TL;DR

This paper reports measurements of electrons from heavy-flavour hadron decays in proton-proton and proton-lead collisions at different energies using ALICE, comparing results to theoretical predictions and analyzing nuclear modification effects.

Contribution

It provides new p_T-differential cross sections and nuclear modification factors for electrons from heavy-flavour decays at multiple collision energies.

Findings

Electron cross sections agree with pQCD predictions at both energies.

Nuclear modification factors indicate medium effects in p-Pb collisions.

Results enhance understanding of heavy-flavour production in high-energy collisions.

Abstract

ALICE measured electrons from inclusive heavy-flavour hadron decays and beauty-hadron decays at mid-rapidity in pp collisions at \sqrt{s} = 7 TeV and 2.76 TeV and p-Pb collisions at \sqrt{s_{NN}} = 5.02 TeV. For both pp collision energies, p_T-differential electron production cross sections are presented and compared to pQCD predictions. For p-Pb collisions, the p_T-dependent nuclear modification factor of electrons from inclusive heavy-flavour hadron decays is presented.