Measurement of heavy flavor production and azimuthal anisotropy in small and large systems with ATLAS
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Afficher la notice complèteEditorial
Elsevier BV
Date
2019Referencia bibliográfica
Hu, Q. (2019). Measurement of heavy flavor production and azimuthal anisotropy in small and large systems with ATLAS. Nuclear Physics A, 982, 687-690.
Résumé
Heavy-flavor hadron production and collective motion in A+A collisions provide insight into the energy loss mechanism
and transport properties of heavy quarks in the QGP. The same measurements in p+A collisions serve as an important
baseline for understanding the observations in A+A collisions. For example, detailed studies of heavy-flavor hadron
azimuthal anisotropy in p+A collisions may help to address whether the observed long-range “ridge” correlation arises
from hard or semi-hard processes, or if it is the result of mechanisms unrelated to the initial hardness scale. These proceedings
summarize heavy-flavor hadron production, via their semi-leptonic decay to muons in 2.76 TeV Pb+Pb and pp
collisions, non-prompt J/ψ in 5.02 TeV Pb+Pb and pp collisions, and prompt D0 mesons in 8.16 TeV p+Pb collisions
using ATLAS detector at the LHC. Azimuthal anisotropy of heavy-flavor hadrons is studied via their decay muons in
2.76 TeV Pb+Pb and 8.16 TeV p+Pb collisions, and via non-prompt J/ψ in 5.02 TeV Pb+Pb collisions. Strong suppression
of heavy-flavor hadron production and azimuthal anisotropy are observed in Pb+Pb collisions, while significant
azimuthal anisotropy of heavy-flavor muons is observed in p+Pb collisions, without evidence of the modification of
their production rates.