Projects per year
Abstract
The strong Coulomb field created in ultrarelativistic heavy ion collisions is expected to produce a rapidity-dependent difference (Δv 2) in the second Fourier coefficient of the azimuthal distribution (elliptic flow, v 2) between D 0 (u‾c) and D‾ 0 (uc‾) mesons. Motivated by the search for evidence of this field, the CMS detector at the LHC is used to perform the first measurement of Δv 2. The rapidity-averaged value is found to be 〈Δv 2〉=0.001±0.001(stat)±0.003(syst) in PbPb collisions at s NN =5.02TeV. In addition, the influence of the collision geometry is explored by measuring the D 0 and D‾ 0mesons v 2 and triangular flow coefficient (v 3) as functions of rapidity, transverse momentum (p T), and event centrality (a measure of the overlap of the two Pb nuclei). A clear centrality dependence of prompt D 0 meson v 2 values is observed, while the v 3 is largely independent of centrality. These trends are consistent with expectations of flow driven by the initial-state geometry.
Original language | English |
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Article number | 136253 |
Number of pages | 25 |
Journal | Phys. Lett. B |
Volume | 816 |
Issue number | 2021 |
DOIs | |
Publication status | Published - 10 May 2021 |
Bibliographical note
Replaced with the published version. Added the journal reference. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN-19-008 (CMS Public Pages)Keywords
- hep-ex
Fingerprint
Dive into the research topics of 'Measurement of prompt D 0 and D‾ 0 meson azimuthal anisotropy and search for strong electric fields in PbPb collisions at s NN =5.02TeV'. Together they form a unique fingerprint.Projects
- 1 Finished
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SRP8: Strategic Research Programme: High-Energy Physics at the VUB
D'Hondt, J., Van Eijndhoven, N., Craps, B. & Buitink, S.
1/11/12 → 31/10/24
Project: Fundamental
Datasets
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Measurement of prompt $\mathrm{D}^0$ and $\overline{\mathrm{D}}^0$ meson azimuthal anisotropy and search for strong electric fields in PbPb collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV
Blekman, F. (Creator), Bols, E. S. (Creator), Chhibra, S. S. (Creator), D'Hondt, J. (Creator), De Clercq, J. T. (Creator), Lontkovskyi, D. (Creator), Lowette, S. (Creator), Marchesini, I. (Creator), Moortgat, S. (Creator), Python, Q. (Creator), Tavernier, S. (Creator), Van Doninck, W. (Creator), Van Mulders, P. (Creator) & Burns, D. (Creator), HEPData, 23 Aug 2021
DOI: 10.17182/hepdata.93879, https://www.hepdata.net/record/ins1819820
Dataset