File:PhysRevC.99.064901.pdf
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Production of the ρ(770)0 meson in pp and Pb-Pb collisions at √sNN=2.76TeV
Summary[edit]
| Description |
English: The production of the ρ(770)0 meson has been measured at midrapidity (|y|<0.5) in pp and centrality differential Pb-Pb collisions at √sNN= 2.76 TeV with the ALICE detector at the Large Hadron Collider. The particles have been reconstructed in the ρ(770)0→π+π− decay channel in the transverse-momentum (pT) range 0.5–11 GeV/c. A centrality-dependent suppression of the ratio of the integrated yields 2ρ(770)0/(π++π−) is observed. The ratio decreases by ∼40% from pp to central Pb-Pb collisions. A study of the pT-differential 2ρ(770)0/(π++π−) ratio reveals that the suppression occurs at low transverse momenta, pT<2 GeV/c. At higher momentum, particle ratios measured in heavy-ion and pp collisions are consistent. The observed suppression is very similar to that previously measured for the K∗(892)0/K ratio and is consistent with EPOS3 predictions that may imply that rescattering in the hadronic phase is a dominant mechanism for the observed suppression. |
| Date | |
| Source |
https://journals.aps.org/prc/abstract/10.1103/PhysRevC.99.064901 https://doi.org/10.1103/PhysRevC.99.064901 |
| Author | S. Acharya et al. (ALICE Collaboration) |
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| current | 09:30, 5 June 2019 |  | 1,227 × 1,650, 20 pages (1.14 MB) | Pamputt (talk | contribs) | User created page with UploadWizard |
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