The elliptic flow of mesons from beauty-hadron decays (non-prompt was measured in midcentral (30–50%) Pb–Pb collisions at a centre-of-mass energy per nucleon pair TeV with the ALICE detector at the LHC. The mesons were reconstructed at midrapidity from their hadronic decay π, in the transverse momentum interval GeV/c. The result indicates a positive for non-prompt mesons with a significance of 2.7. The non-prompt -meson is lower than that of prompt non-strange D mesons with 3.2 significance in , and compatible with the of beauty-decay electrons. Theoretical calculations of beauty-quark transport in a hydrodynamically expanding medium describe the measurement within uncertainties.
Measurement of non-prompt D0-meson elliptic flow in Pb-Pb collisions at √sNN=5.02 TeV
Barile, F.Membro del Collaboration Group
;Colella, D.Membro del Collaboration Group
;Di Bari, D.Membro del Collaboration Group
;Mazzilli, M.Membro del Collaboration Group
;Volpe, G.Membro del Collaboration Group
;
2023-01-01
Abstract
The elliptic flow of mesons from beauty-hadron decays (non-prompt was measured in midcentral (30–50%) Pb–Pb collisions at a centre-of-mass energy per nucleon pair TeV with the ALICE detector at the LHC. The mesons were reconstructed at midrapidity from their hadronic decay π, in the transverse momentum interval GeV/c. The result indicates a positive for non-prompt mesons with a significance of 2.7. The non-prompt -meson is lower than that of prompt non-strange D mesons with 3.2 significance in , and compatible with the of beauty-decay electrons. Theoretical calculations of beauty-quark transport in a hydrodynamically expanding medium describe the measurement within uncertainties.File | Dimensione | Formato | |
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