12–16 Dec 2022
IISER Mohali
Asia/Kolkata timezone

CME search in isobar ($^{96}_{44}Ru$+$^{96}_{44}Ru$ and $^{96}_{40}Zr$+$^{96}_{40}Zr$) collisions at $\sqrt{s_\mathrm{NN}} = 200$ GeV using SDM at RHIC

15 Dec 2022, 12:15
15m
LH6 (IISER Mohali)

LH6

IISER Mohali

Lecture Hall Complex, IISER Mohali, Sector 81, Knowledge city, SAS Nagar, Punjab, India

Speaker

Mr Jagbir Singh (Panjab University Chandigarh India)

Description

Experiments conducted in the last decade to search for the Chiral Magnetic Effect (CME) in heavy-ion collisions have been inconclusive. Isobar program at RHIC was conducted to address this problem. Also, in order to study the CME, a new approach known as the Sliding Dumbbell Method (SDM) [1] has been developed. This method searches for the back-to-back charge separation on an event-by-event basis. 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 that correspond to the highest charge separation across the dumbbell. Results for two- and three-particle correlators for isobar (Ru+Ru and Zr+Zr) collisions at $\sqrt{s_{\mathrm{NN}}} = 200$ GeV will be presented for each bin of $f_{DbCS}$ in each collision centrality. The background contribution due to statistical fluctuations is obtained by randomly shuffling the charges of the particles in a particular collision centrality. Correlated backgrounds are calculated for each $f_{DbCS}$ bin of charged shuffled events using their corresponding original events.

References

[1] J. Singh, A. Attri, and M. M. Aggarwal, Proceedings of the DAE Symp. on Nucl. Phys. 64, 830 (2019) "http://www.sympnp.org/proceedings/64/E66.pdf".

Session Heavy Ions and QCD

Author

Mr Jagbir Singh (Panjab University Chandigarh India)

Co-author

Presentation materials