Production of K*(892)0 and φ1020 in pp and Pb-Pb collisions at √sNN= 5.02 TeV
The production of K∗(892)0 and ϕ(1020) mesons in proton-proton (pp) and lead-lead (Pb-Pb) collisions at √sNN = 5.02 TeV has been measured using the ALICE detector at the Large Hadron Collider (LHC). The transverse momentum (pT) distributions of K∗(892)0 and ϕ(1020) mesons have been measured at midra...
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
14 September 2022
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| In: |
Physical review
Year: 2022, Jahrgang: 106, Heft: 3, Pages: 1-20 |
| ISSN: | 2469-9993 |
| DOI: | 10.1103/PhysRevC.106.034907 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevC.106.034907 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevC.106.034907 
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| Verfasserangaben: | S. Acharya et al. (ALICE Collaboration) |
MARC
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| 245 | 1 | 0 | |a Production of K*(892)0 and φ1020 in pp and Pb-Pb collisions at √sNN= 5.02 TeV |c S. Acharya et al. (ALICE Collaboration) |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Production of K * (892) 0 and phi 1020 in pp and Pb-Pb collisions at √sNN = 5.02 TeV |
| 264 | 1 | |c 14 September 2022 | |
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| 500 | |a Im Titel steht der Ausdruck "SNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt | ||
| 500 | |a Im Titel wird die Ziffer "0" hochgestellt | ||
| 500 | |a 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, J.A. Lopez, N.A. Martin, A. Nath, Y. Pachmayer, K. Reygers, R. Schicker, A. Schmah, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, M.A. Völkl, B. Windelband [und viele weitere] | ||
| 500 | |a Gesehen am 08.11.2023 | ||
| 520 | |a The production of K∗(892)0 and ϕ(1020) mesons in proton-proton (pp) and lead-lead (Pb-Pb) collisions at √sNN = 5.02 TeV has been measured using the ALICE detector at the Large Hadron Collider (LHC). The transverse momentum (pT) distributions of K∗(892)0 and ϕ(1020) mesons have been measured at midrapidity (|y|<0.5) up to pT= 20 GeV/c in inelastic pp collisions and for several Pb-Pb collision centralities. The collision centrality and collision energy dependence of the average transverse momenta agree with the radial flow scenario observed with stable hadrons, showing that the effect is stronger for more central collisions and higher collision energies. The K*0/K ratio is found to be suppressed in Pb-Pb collisions relative to pp collisions: this indicates a loss of the measured K∗(892)0 signal due to rescattering of its decay products in the hadronic phase. In contrast, for the longer-lived ϕ(1020) mesons, no such suppression is observed. The nuclear modification factors (RAA) of K∗(892)0 and ϕ(1020) mesons are calculated using pp reference spectra at the same collision energy. In central Pb-Pb collisions for pT > 8 GeV/c, the RAA values of K∗(892)0 and ϕ(1020) are below unity and observed to be similar to those of pions, kaons, and (anti)protons. The RAA values at high pT (>8 GeV/c) for K∗(892)0 and ϕ(1020) mesons are in agreement within uncertainties for √sNN= 5.02 and 2.76 TeV. | ||
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