About
In this presentation, we show measurements of the second Fourier coefficient of the azimuthal distribution (elliptic flow, v2) of prompt D0 and D0bar mesons using the four-particle cumulants technique at midrapidity (|y| < 1). These measurements are performed using data from PbPb collisions at 5.02 TeV collected by the CMS detector at the LHC in 2018. The v2 of prompt D0 and D0bar mesons are studied in differential transverse momentum (pT) and event centrality (a measure of the overlap of the two Pb nuclei) bins. Compared to inclusive charged particles, the v2 ratio of measurements using four-particle cumulants and two-particle method, v2{4}/v2{2}, is studied to investigate the contribution of soft and hard physics fluctuations. The results illustrate, for the first time, an indication of charm quark v2 fluctuation from energy loss..
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The talk
Credits and licence
- Institution
- CERN
- Department
- Conferences
- Speaker
- Liuyao Zhang
- Year
- 2021
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed