Measurement of electrons from semileptonic heavy-flavor hadron decays in pp collisions at $\sqrt{s} = 2.76$ TeV

TL;DR

This paper reports the measurement of electrons from heavy-flavor hadron decays in proton-proton collisions at 2.76 TeV, providing data that tests perturbative QCD predictions in this energy regime.

Contribution

First measurement of electron production from heavy-flavor hadron decays at 2.76 TeV in pp collisions, extending the experimental data for QCD validation.

Findings

Data agrees with perturbative QCD within uncertainties

Electron cross sections measured over 0.5-12 GeV/c

Supports existing QCD models at this energy

Abstract

The $p_{\rm T}$-differential production cross section of electrons from semileptonic decays of heavy-flavor hadrons has been measured at mid-rapidity in proton-proton collisions at $\sqrt{s} = 2.76$ TeV in the transverse momentum range 0.5 < $p_{\rm T}$ < 12 GeV/$c$ with the ALICE detector at the LHC. The analysis was performed using minimum bias events and events triggered by the electromagnetic calorimeter. Predictions from perturbative QCD calculations agree with the data within the theoretical and experimental uncertainties.