Production measurements of heavy quarks in pp collisions at √(s) = 13 TeV with the ALICE detector

2023/01/26 by Shaba, Tebogo Joyce
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Nuclear Experiment (nucl-ex)

paper · doi:10.48550/arxiv.2301.11141

Abstract

Heavy-flavour production measurements in pp collisions are important tools to test theoretical models based on perturbative quantum chromodymanics (pQCD) and to investigate the heavy-quark hadronization mechanisms. In ALICE, heavy quarks are measured via the hadronic and electronic decay channels at central rapidity (-0.9 < y < 0.9) and via the muon decay channels at forward rapidity (-4 < y < -2.5). In this contribution, the production cross-section measurements via the leptonic decay of heavy-flavour hadrons are presented and compared to pQCD theoretical calculations. The latest measurements of \rm D⁰, \rm D⁺, \rm D^*+, D⁺_s mesons whose hadronic decays into charged are fully reconstructed together with the measurements of Λ⁺_c , Ξ^0,+_c, Σ^0,++_c and Ω⁰_c baryons, performed with the ALICE detector at midrapidity in pp collisions at √(s) = 13 TeV, are also presented. Measurements of charm-baryon production are crucial to study the charm-quark hadronization mechanisms in a partonic rich environment like the one produced in pp collisions at LHC energies.

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