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Constraining the Chiral Magnetic Effect with Charge-Dependent Azimuthal Correlations in ALICE

Charge-dependent correlations measured in Pb–Pb collisions at $\sqrt{ {s}_\mathrm {{NN}}} = $ 2.76 and 5.02 TeV recorded by ALICE are presented in this article. These correlations are used to probe parity violating processes, namely the Chiral Magnetic Effect (CME), in heavy-ion collisions. The CME-...

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Detalles Bibliográficos
Autor principal: Haque, Md Rihan
Lenguaje:eng
Publicado: 2022
Materias:
Acceso en línea:https://dx.doi.org/10.1007/978-981-19-2354-8_85
http://cds.cern.ch/record/2848741
Descripción
Sumario:Charge-dependent correlations measured in Pb–Pb collisions at $\sqrt{ {s}_\mathrm {{NN}}} = $ 2.76 and 5.02 TeV recorded by ALICE are presented in this article. These correlations are used to probe parity violating processes, namely the Chiral Magnetic Effect (CME), in heavy-ion collisions. The CME-sensitive correlator $\gamma _{1,1} = \langle \cos (\varphi _{\alpha } +\varphi _{\beta } - 2\Psi _{2}) \rangle $ along with the correlator $\gamma _{1,2} = \langle \cos (\varphi _{\alpha } +2\varphi _{\beta } - 3\Psi _{3}) \rangle $, which is sensitive to background only, are used to estimate the CME fraction ($f_\textrm{CME}$). A blast-wave model coupled to effects from local charge conservation is also used to predict the background for the CME-sensitive $\gamma _{1,1}$ correlator.