Investigating the event-shape methods in search for the chiral magnetic effect in relativistic heavy-ion collisions
Abstract
The azimuthal correlator Ay searching for the chiral magnetic effect (CME) is contaminated by a major background proportional to the elliptic flow v 2 . Event-shape engineering (ESE) and event-shape selection (ESS) binning events in dynamical and statistical fluctuations of v 2 , respectively, are two methods searching for the CME. We conduct a systematic study using physics and toy model simulations. It is found that ESE fulfills the general premise of measuring the CME but is statistically hungry, whereas ESS is not practical to measure the CME because of the intertwining variables used in the method.
Fields of Study & Subjects
High-Energy Particle Collisions Research
Nuclear physics research studies
Gamma-ray bursts and supernovae
Publication details
- Journal / source
- EPJ Web of Conferences
- Publisher
- EDP Sciences
- Volume
- 364
- Pages
- 03002–03002
- Publication date
- 1 January 2026
- Language
- EN