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| Title: | Measurement of non-prompt D -meson elliptic flow in Pb–Pb collisions at √sNN=5.02 TeV |
| Authors: | Bailung, Yoshini Behera, Debadatta Goswami, Kangkan Gupta, R. K. |
| Issue Date: | 2023 |
| Publisher: | Institute for Ionics |
| Citation: | Acharya, S., Adamová, D., Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, S., Ahn, S. U., Ahuja, I., Akindinov, A., Al-Turany, M., Aleksandrov, D., Alessandro, B., Alfanda, H. M., Alfaro Molina, R., Ali, B., Alici, A., Alizadehvandchali, N., Alkin, A., … ALICECollaboration. (2023). Measurement of non-prompt D -meson elliptic flow in Pb–Pb collisions at √sNN=5.02 TeV. European Physical Journal C. Scopus. https://doi.org/10.1140/epjc/s10052-023-12259-3 |
| Abstract: | The elliptic flow (v2) of D mesons from beauty-hadron decays (non-prompt D) was measured in midcentral (30–50%) Pb–Pb collisions at a centre-of-mass energy per nucleon pair sNN=5.02 TeV with the ALICE detector at the LHC. The D mesons were reconstructed at midrapidity (| y| < 0.8) from their hadronic decay D → K -π + , in the transverse momentum interval 2 < pT< 12 GeV/c. The result indicates a positive v2 for non-prompt D mesons with a significance of 2.7 σ . The non-prompt D -meson v2 is lower than that of prompt non-strange D mesons with 3.2 σ significance in 2< pT< 8GeV/c , and compatible with the v2 of beauty-decay electrons. Theoretical calculations of beauty-quark transport in a hydrodynamically expanding medium describe the measurement within uncertainties. © 2023, The Author(s). |
| URI: | https://doi.org/10.1140/epjc/s10052-023-12259-3 https://dspace.iiti.ac.in/handle/123456789/13011 |
| ISSN: | 1434-6044 |
| Type of Material: | Journal Article |
| Appears in Collections: | Department of Physics |
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