File:PhysRevLett.123.192301.pdf
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Measurement of Υ(1S) Elliptic Flow at Forward Rapidity in Pb-Pb Collisions at √sNN=5.02 TeV
Summary[edit]
| Description |
English: The first measurement of the Υ(1S) elliptic flow coefficient (v2) is performed at forward rapidity (2.5<y<4) in Pb–Pb collisions at √sNN=5.02 TeV with the ALICE detector at the LHC. The results are obtained with the scalar product method and are reported as a function of transverse momentum (pT) up to 15 GeV/c in the 5%–60% centrality interval. The measured Υ(1S)v2 is consistent with 0 and with the small positive values predicted by transport models within uncertainties. The v2 coefficient in 2<pT<15 GeV/c is lower than that of inclusive J/ψ mesons in the same pT interval by 2.6 standard deviations. These results, combined with earlier suppression measurements, are in agreement with a scenario in which the Υ(1S) production in Pb–Pb collisions at LHC energies is dominated by dissociation limited to the early stage of the collision, whereas in the J/ψ case there is substantial experimental evidence of an additional regeneration component. |
| Date | |
| Source |
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.123.192301 https://doi.org/10.1103/PhysRevLett.123.192301 |
| Author | S. Acharya et al. (A Large Ion Collider Experiment Collaboration) |
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| current | 08:00, 7 November 2019 |  | 1,275 × 1,650, 13 pages (386 KB) | Pamputt (talk | contribs) | User created page with UploadWizard |
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