Danu, Andrea (2025) Searches for the Chiral Magnetic Effect in Xe--Xe and Pb--Pb collisions with ALICE. Il nuovo cimento C, 48 (1). pp. 1-5. ISSN 1826-9885
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Abstract
Measurements of charge-dependent three-particle correlations in Pb–Pb and Xe–Xe collisions at √ sNN = 5.02 TeV and 5.44 TeV, respectively, are presented. For Pb–Pb collisions, the event shape engineering technique has been employed in the analysis. Results on the centrality dependence of the three-particle correlator γαβ ≡⟨cos(ϕα +ϕβ −2Ψ2)⟩ (α,β denote the charge sign), used to search for the Chiral Magnetic Effect (CME), are reported in the transverse momentum interval 0.2 ≤ pT < 5.0GeV/c within the pseudorapidity range ∣η∣<0.8. The charge dependence of γαβ has similar magnitudes in the two collision systems pointing to large background contributions. It is quantitatively reproduced by the Anomalous Viscous Fluid Dynamics model and by a blast wave model calculation that includes non-CME effects in Xe–Xe collisions. Furthermore, these measurements combined with Monte Carlo Glauber and TRENTo simulations of the magnetic field are used to estimate the fraction of the CME contribution to γαβ in Xe–Xe and Pb–Pb collisions.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 24 Mar 2025 15:15 |
| Last Modified: | 24 Mar 2025 15:15 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23469 |
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