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  {\large \textbf {Study of Chiral Magnetic Effect in Isobar (Ru$+$Ru and Zr$+$Zr) and Au$+$Au collisions at $\sqrt{s_\mathrm{NN}} = 200$ GeV at STAR using Sliding Dumbbell Method}}
    
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    {\small \it{Jagbir Singh } \\ (for STAR Collaboration) \\\small \it{Department of Physics, Panjab University, Chandigarh, India}}\\
    email: \mbox{jagbir@rcf.rhic.bnl.gov}
    
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           {\textbf {Abstract}}
           
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To probe the Chiral Magnetic Effect (CME) in heavy-ion collisions, a new technique, Sliding Dumbbell Method (SDM) \cite{Singh} is developed to search for the $\operatorname{back-to-back}$ charge separation on $\operatorname{event-by-event}$ basis. The SDM helps in selecting the events corresponding to different charge separations ($f_{DbCS}$). The charge separation distributions for each collision centrality is divided into 10 percentile bins to select potential $\operatorname{CME-like}$ events corresponding to the maximum charge separation (e.g. top 10$\%$) in a given collision centrality. Results will be discussed for $\operatorname{two-}$ and $\operatorname{three-particle}$ correlators with respect to each bin of $f_{DbCS}$ for each collision centrality for isobaric and Au$+$Au collisions at $\sqrt{s_\mathrm{NN}} = 200$ GeV. The background contribution due to statistical fluctuations is obtained by shuffling the charges of particles in a given collision centrality. The correlated background amongst the produced particles which got removed due to shuffling is determined by restoring the shuffled charges.


\begin{thebibliography}{2}
  \bibitem{Singh} J. Singh, A. Attri, and M. M. Aggarwal, Proceedings of the DAE Symp. on Nucl. Phys. \textbf{64}, 830 (2019) "http://www.sympnp.org/proceedings/64/E66.pdf".
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