Examination of the observability of a chiral magnetically driven charge-separation difference in collisions of the Ru 4496 + Ru 4496 and Zr 4096 + Zr 4096 isobars at energies available at the BNL Relativistic Heavy Ion Collider

Anomalous viscous fluid dynamics model calculations for Ru4496+Ru4496 and Zr4096+Zr4096 collisions (sNN=200 GeV) are used in concert with a charge-sensitive correlator to test its ability to detect and characterize the charge separation difference expected from the chiral magnetic effect (CME) in these isobaric collisions. The tests indicate a larger charge separation for Ru4496+Ru4496 than for Zr4096+Zr4096 collisions and a discernible CME-driven difference of ∼10% in the presence of realistic non-CME backgrounds. They also indicate a strategy for evaluating the relative influence of the background correlations, present for each isobar. These results suggest that charge-separation measurements for these isobaric species could serve to further constrain unambiguous identification and characterization of the CME in upcoming measurements at the Relativistic Heavy Ion Collider.