Speaker
Description
The chiral imbalance, coupled with the presence of a strong magnetic field produced during heavy-ion collisions, results in charge separation along the magnetic field axis, a phenomenon known as the Chiral Magnetic Effect (CME). A novel technique, the Sliding Dumbbell Method (SDM) [1, 2] has been developed to investigate the CME with the RHIC's isobar program. The SDM facilitates the selection of events corresponding to various charge separations ($f_{DbCS}$) across the dumbbell. A partitioning of the charge separation distributions for each collision centrality into ten percentile bins is done in order to find potential CME-like events corresponding to the highest charge separation across the dumbbell. The study reports the results on CME sensitive $\gamma$-correlator ($\gamma = \langle \cos(\phi_a+\phi_b - 2\Psi_{RP}) \rangle$) and $\delta$-correlator ($\delta = \langle \cos(\phi_a-\phi_b) \rangle$) for each bin of $f_{DbCS}$ in each collision centrality for isobaric collisions (Ru+Ru and Zr+Zr) at $\sqrt{s_{\mathrm{NN}}} = 200$ GeV measured with the STAR detector. Furthermore, the background scaled ratio ($\Delta\gamma_{Ru/Zr}$/$\Delta\gamma_{Bkg}$) will be presented to check for the expected enhancement of the CME in Ru+Ru collisions as compared to Zr+Zr collisions. Overall, this research aims to understand and detect the CME through an innovative experimental method.
References:
[1] J. Singh, A. Attri, and M. M. Aggarwal, Proceedings of the DAE Symp. on Nucl. Phys. 64, 830 (2019).
[2] J. Singh (for STAR Collaboration), Springer Proc. Phys. 304, 464 (2024).
Details
Jagbir Singh (for the STAR Collaboration), Postdoctoral Fellow, Instituto de Alta Investigacion, Universidad de Tarapaca, Arica, Chile
| Internet talk | Yes |
|---|---|
| Is this an abstract from experimental collaboration? | Yes |
| Name of experiment and experimental site | STAR Experiment at RHIC |
| Is the speaker for that presentation defined? | Yes |
