Publications [#381174] of Seog Oh

Papers Published

1. Abdulhamid, MI; Aboona, BE; Adam, J; Adams, JR; Agakishiev, G; Aggarwal, I; Aggarwal, MM; Ahammed, Z; Aitbaev, A; Alekseev, I; Alpatov, E; Aparin, A; Aslam, S; Atchison, J; Averichev, GS; Bairathi, V; Cap, JGB; Barish, K; Bhagat, P; Bhasin, A; Bhatta, S; Bhosale, SR; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Broodo, C; Cai, XZ; Caines, H; Sánchez, MCDLB; Cebra, D; Ceska, J; Chakaberia, I; Chan, BK; Chang, Z; Chatterjee, A; Chen, D; Chen, J; Chen, JH; Chen, Z; Cheng, J; Cheng, Y; Choudhury, S; Christie, W; Chu, X; Crawford, HJ; Dale-Gau, G; Das, A; Dedovich, TG; Deppner, IM; Derevschikov, AA; Dhamija, A; Dixit, P; Dong, X; Drachenberg, JL; Duckworth, E; Dunlop, JC; Engelage, J; Eppley, G; Esumi, S; Evdokimov, O; Eyser, O; Fatemi, R; Fazio, S; Feng, CJ; Feng, Y; Finch, E; Fisyak, Y; Flor, FA; Fu, C; Gao, T; Geurts, F; Ghimire, N; Gibson, A; Gopal, K; Gou, X; Grosnick, D; Gupta, A; Hamed, A; Han, Y; Harasty, MD; Harris, JW; Harrison-Smith, H; He, W; He, XH; He, Y; Hu, C; Hu, Q; Hu, Y; Huang, H; Huang, HZ; Huang, SL; Huang, T; Huang, X; Huang, Y; Humanic, TJ; Isshiki, M; Jacobs, WW; Jalotra, A; Jena, C, Estimate of background baseline and upper limit on the chiral magnetic effect in isobar collisions at sNN =200 GeV at the BNL Relativistic Heavy Ion Collider, Physical Review C, vol. 110 no. 1 (July, 2024) [doi]
   (last updated on 2026/01/22)

   Abstract:
   For the search of the chiral magnetic effect (CME), STAR previously presented the results from isobar collisions (Ru4496+Ru4496, Zr4096+Zr4096) obtained through a blind analysis. The ratio of results in Ru+Ru to Zr+Zr collisions for the CME-sensitive charge-dependent azimuthal correlator (Δγ), normalized by elliptic anisotropy (v2), was observed to be close to but systematically larger than the inverse multiplicity ratio. The background baseline for the isobar ratio, Y=(Δγ/v2)Ru(Δγ/v2)Zr, is naively expected to be (1/N)Ru(1/N)Zr; however, genuine two- and three-particle correlations are expected to alter it. We estimate the contributions to Y from those correlations, utilizing both the isobar data and hijing simulations. After including those contributions, we arrive at a final background baseline for Y, which is consistent with the isobar data. We extract an upper limit for the CME fraction in the Δγ measurement of approximately 10% at a 95% confidence level on in isobar collisions at sNN=200GeV, with an expected 15% difference in their squared magnetic fields.