https://doi.org/10.1140/epja/s10050-026-01796-6
Regular Article - Theoretical Physics
Constraining the CME in AVFD-simulated heavy-ion collisions using the sliding dumbbell method
1
Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, 1000000, Arica, Chile
2
INFN Sezione di Trieste, 34127, Trieste, Italy
3
Department of Physics, D.A.V. College, Sector 10, 160011, Chandigarh, India
4
Department of Physics, Panjab University, 160014, Chandigarh, India
a
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Received:
16
November
2025
Accepted:
8
January
2026
Published online:
9
March
2026
Abstract
The Anomalous Viscous Fluid Dynamics (AVFD) framework is utilized to generate
,
, and
collision events at
= 200 GeV to investigate the Chiral Magnetic Effect (CME). The CME signal is modulated through the axial charge per entropy density (
) in each event to produce data sets with varying CME signal strengths. Additionally, a 33
local charge conservation (LCC) is implemented in each event. These data sets are analyzed using CME-sensitive two- and three-particle correlators. Furthermore, the Sliding Dumbbell Method (SDM) is employed to identify potential CME-like events within each data set. The identified events selected using the SDM exhibit characteristics consistent with CME driven charge separation. The CME fraction in these events is quantified while accounting for background contributions. It is found that a
LCC contribution can mimic the CME signal in both
and isobar collisions.
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Communicated by Che-Ming Ko.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2026
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
