| |  Online-Ressource |
|---|
| Titel: | Measurement of prompt Ds+-meson production and azimuthal anisotropy in Pb-Pb collisions at √sNN=5.02TeV |
|---|
| Mitwirkende: | Acharya, Shreyasi [VerfasserIn]  |
|---|
| | Angelov, Venelin [VerfasserIn] |
|---|
| | Arslandok, Mesut [VerfasserIn] |
|---|
| | Berdnikova, Anastasia [VerfasserIn] |
|---|
| | Bergmann, Luisa [VerfasserIn] |
|---|
| | Danisch, Meike [VerfasserIn] |
|---|
| | Feuillard, Victor [VerfasserIn] |
|---|
| | Glässel, Peter [VerfasserIn] |
|---|
| | Kim, Jiyoung [VerfasserIn] |
|---|
| | Kim, Minjung [VerfasserIn] |
|---|
| | Köhler, Markus Konrad [VerfasserIn] |
|---|
| | Kroesen, Martin [VerfasserIn] |
|---|
| | Nath, Abhishek [VerfasserIn] |
|---|
| | Pachmayer, Yvonne C. [VerfasserIn] |
|---|
| | Reygers, Klaus [VerfasserIn] |
|---|
| | Schicker, Rainer [VerfasserIn] |
|---|
| | Schmah, Alexander [VerfasserIn] |
|---|
| | Schmidt, Marten Ole [VerfasserIn] |
|---|
| | Skorodumovs, Georgijs [VerfasserIn] |
|---|
| | Stachel, Johanna [VerfasserIn] |
|---|
| | Stiefelmaier, Stephan [VerfasserIn] |
|---|
| | Völkl, Martin [VerfasserIn] |
|---|
| | Windelband, Bernd [VerfasserIn] |
|---|
| Körperschaft: | ALICE (Körperschaft) [VerfasserIn] |
|---|
| Verf.angabe: | ALICE Collaboration* |
|---|
| E-Jahr: | 2022 |
|---|
| Jahr: | 4 March 2022 |
|---|
| Umfang: | 17 S. |
|---|
| Fussnoten: | Online verfügbar 24 Februar 2022, Artikelversion 4 März 2022 ; *ALICE Collaboration: S. Acharya, V. Anguelov, M. Arslandok, A. Berdnikova, L. Bergmann, M.C. Danisch, V.J.G. Feuillard, P. Glässel, J. Kim, M. Kim, M.K. Köhler, M. Kroesen, A. Nath, Y. Pachmayer, K. Reygers, R. Schicker, A. Schmah, M.O. Schmidt, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, M.A. Völkl, B. Windelband [und 1004 weitere Personen] ; Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol ; Im Titel ist der Buchstabe s tiefgestellt ; Im Titel ist das Pluszeichen hochgestellt ; Gesehen am 17.02.2023 |
|---|
| Titel Quelle: | Enthalten in: Physics letters / B |
|---|
| Ort Quelle: | Amsterdam : North-Holland Publ., 1967 |
|---|
| Jahr Quelle: | 2022 |
|---|
| Band/Heft Quelle: | 827(2022) vom: März, Artikel-ID 136986, Seite 1-17 |
|---|
| ISSN Quelle: | 1873-2445 |
|---|
| Abstract: | The production yield and angular anisotropy of prompt Ds+ mesons were measured as a function of transverse momentum (pT) in Pb-Pb collisions at a centre-of-mass energy per nucleon pair sNN=5.02TeV collected with the ALICE detector at the LHC. Ds+ mesons and their charge conjugates were reconstructed at midrapidity (|y|<0.5) from their hadronic decay channel Ds+→ϕπ+, with ϕ→K−K+, in the pT intervals 2<pT<50GeV/c and 2<pT<36GeV/c for the 0-10% and 30-50% centrality intervals. For pT>10GeV/c, the measured Ds+-meson nuclear modification factor RAA is consistent with the one of non-strange D mesons within uncertainties, while at lower pT a hint for a Ds+-meson RAA larger than that of non-strange D mesons is seen. The enhanced production of Ds+ relative to non-strange D mesons is also studied by comparing the pT-dependent Ds+/D0 production yield ratios in Pb-Pb and in pp collisions. The ratio measured in Pb-Pb collisions is found to be on average higher than that in pp collisions in the interval 2<pT<8GeV/c with a significance of 2.3σ and 2.4σ for the 0-10% and 30-50% centrality intervals. The azimuthal anisotropy coefficient v2 of prompt Ds+ mesons was measured in Pb-Pb collisions in the 30-50% centrality interval and is found to be compatible with that of non-strange D mesons. The main features of the measured RAA, Ds+/D0 ratio, and v2 as a function of pT are described by theoretical calculations of charm-quark transport in a hydrodynamically expanding quark-gluon plasma including hadronisation via charm-quark recombination with light quarks from the medium. The pT-integrated production yield of Ds+ mesons is compatible with the prediction of the statistical hadronisation model. |
|---|
| DOI: | doi:10.1016/j.physletb.2022.136986 |
|---|
| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1016/j.physletb.2022.136986 |
|---|
| | Volltext: https://www.sciencedirect.com/science/article/pii/S0370269322001204 |
|---|
| | DOI: https://doi.org/10.1016/j.physletb.2022.136986 |
|---|
| Datenträger: | Online-Ressource |
|---|
| Sprache: | eng |
|---|
| K10plus-PPN: | 1836991487 |
|---|
| Verknüpfungen: | → Zeitschrift |
|---|
Measurement of prompt Ds+-meson production and azimuthal anisotropy in Pb-Pb collisions at √sNN=5.02TeV / Acharya, Shreyasi [VerfasserIn]; 4 March 2022 (Online-Ressource)
