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Measurement of the (anti-)3He elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV (CROSBI ID 278644)

Prilog u časopisu | Pismo (znanstveno) | međunarodna recenzija

(ALICE Collaboration) Acharya, S. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Jerčić, Marko ; ... et al. Measurement of the (anti-)3He elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV // Physics letters. B, 805 (2020), 135414, 14. doi: 10.1016/j.physletb.2020.135414

Podaci o odgovornosti

Acharya, S. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Jerčić, Marko ; ... ; Lončar, Petra ; ... ; Mudnić, Eugen ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Simatović, Goran ; ... ; Utrobičić, Antonija ; ... ; Vicković, Linda ; ... ; Zurlo, N.

ALICE Collaboration

engleski

Measurement of the (anti-)3He elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV

The elliptic flow (v2) of (anti-)3He is measured in Pb–Pb collisions at √sNN=5.02 TeV in the transverse-momentum (pT) range of 2–6 GeV/cfor the centrality classes 0–20%, 20–40%, and 40–60% using the event-plane method. This measurement is compared to that of pions, kaons, and protons at the same center-of-mass energy. A clear mass ordering is observed at low pT, as expected from relativistic hydrodynamics. The violation of the scaling of v2with the number of constituent quarks at low pT, already observed for identified hadrons and deuterons at LHC energies, is confirmed also for (anti-)3He. The elliptic flow of (anti-)3He is underestimated by the Blast-Wave model and overestimated by a simple coalescence approach based on nucleon scaling. The elliptic flow of (anti-)3He measured in the centrality classes 0–20% and 20–40% is well described by a more sophisticated coalescence model where the phase-space distributions of protons and neutrons are generated using the iEBE-VISHNU hybrid model with AMPT initial conditions.

Pb–Pb collisions

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Podaci o izdanju

805

2020.

135414

14

objavljeno

0370-2693

1873-2445

10.1016/j.physletb.2020.135414

Povezanost rada

Fizika

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