Refine
Year of publication
Language
- English (994)
Has Fulltext
- yes (994)
Is part of the Bibliography
- no (994)
Keywords
- Heavy Ion Experiments (20)
- Hadron-Hadron Scattering (11)
- Hadron-Hadron scattering (experiments) (11)
- Heavy-ion collision (6)
- Collective Flow (4)
- Quark-Gluon Plasma (4)
- Jets (3)
- Jets and Jet Substructure (3)
- Charm physics (2)
- Experimental nuclear physics (2)
Institute
- Physik (994)
- Frankfurt Institute for Advanced Studies (FIAS) (931)
- Informatik (897)
- Informatik und Mathematik (3)
- Hochschulrechenzentrum (2)
The elliptic flow (v2) of D0 mesons from beauty-hadron decays (non-prompt D0) was measured in midcentral (30-50%) Pb-Pb collisions at a centre-of-mass energy per nucleon pair sNN−−−√ = 5.02 TeV with the ALICE detector at the LHC. The D0 mesons were reconstructed at midrapidity (|y|<0.8) from their hadronic decay D0→K−π+, in the transverse momentum interval 2<pT<12 GeV/c. The result indicates a positive v2 for non-prompt D0 mesons with a significance of 2.7σ. The non-prompt D0-meson v2 is lower than that of prompt non-strange D mesons with 3.2σ significance in 2<pT<8 GeV/c, and compatible with the v2 of beauty-decay electrons. Theoretical calculations of beauty-quark transport in a hydrodynamically expanding medium describe the measurement within uncertainties.