Production of muons from heavy-flavour hadron decays in pp collisions at $\sqrt{s}$ = 5.02 TeV

Abstract

Production cross sections of muons from semi-leptonic decays of charm and beauty hadrons were measured at forward rapidity ($2.5<y<4$) in proton--proton (pp) collisions at a centre-of-mass energy $\sqrt{s}=5.02$ TeV with the ALICE detector at the CERN LHC. The results were obtained in an extended transverse momentum interval, $2<p_{\mathrm{T}}<20$ GeV/$c$, and with an improved precision compared to previous measurements performed in the same rapidity interval at centre-of-mass energies $\sqrt{s}=2.76$ and 7 TeV. The $p_{\mathrm{T}}$- and $y$-differential production cross sections as well as the $p_{\mathrm{T}}$-differential production cross section ratios between different centre-of-mass energies and different rapidity intervals are described, within experimental and theoretical uncertainties, by predictions based on perturbative QCD.

23 pages, 7 captioned figures, 1 table, authors from page 18, published version, figures at http://alice-publications.web.cern.ch/node/5290

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• Towards the understanding of heavy quarks hadronization: from leptonic to heavy-ion collisions
• Azimuthal correlations of heavy-flavor hadron decay electrons with charged particles in pp and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Inclusive heavy-flavour production at central and forward rapidity in Xe-Xe collisions at $\sqrt{s_{\mathrm{NN}}}=5.44$ TeV
• Measurement of the nuclear modification factor for muons from charm and bottom hadrons in Pb+Pb collisions at 5.02 TeV with the ATLAS detector
• Production of leptons from decay of heavy-flavor hadrons in high-energy nuclear collisions
• Machine learning driven identification of heavy flavor decay leptons in proton-proton collisions at the Large Hadron Collider