학술논문
Event-plane-dependent dihadron correlations with harmonic vn subtraction in Au + Au collisions at s NN =200 GeV
Document Type
article
Author
Agakishiev, H; Aggarwal, MM; Ahammed, Z; Alakhverdyants, AV; Alekseev, I; Alford, J; Anderson, BD; Anson, CD; Arkhipkin, D; Averichev, GS; Balewski, J; Beavis, DR; Behera, NK; Bellwied, R; Betancourt, MJ; Betts, RR; Bhasin, A; Bhati, AK; Bichsel, H; Bielcik, J; Bielcikova, J; Biritz, B; Bland, LC; Borowski, W; Bouchet, J; Braidot, E; Brandin, AV; Bridgeman, A; Brovko, SG; Bruna, E; Bueltmann, S; Bunzarov, I; Burton, TP; Cai, XZ; Caines, H; De La Barca Sánchez, MC; Cebra, D; Cendejas, R; Cervantes, MC; Chajecki, Z; Chaloupka, P; Chattopadhyay, S; Chen, HF; Chen, JH; Chen, JY; Chen, L; Cheng, J; Cherney, M; Chikanian, A; Choi, KE; Christie, W; Chung, P; Codrington, MJM; Corliss, R; Cramer, JG; Crawford, HJ; Dash, S; Leyva, AD; De Silva, LC; Debbe, RR; Dedovich, TG; Derevschikov, AA; De Souza, RD; Didenko, L; Djawotho, P; Dogra, SM; Dong, X; Drachenberg, JL; Draper, JE; Dunlop, JC; Efimov, LG; Elnimr, M; Engelage, J; Eppley, G; Estienne, M; Eun, L; Evdokimov, O; Fatemi, R; Fedorisin, J; Feng, A; Fersch, RG; Filip, P; Finch, E; Fine, V; Fisyak, Y; Gagliardi, CA; Gangadharan, DR; Geromitsos, A; Geurts, F; Ghosh, P; Gorbunov, YN; Gordon, A; Grebenyuk, O; Grosnick, D; Guertin, SM; Gupta, A; Guryn, W; Haag, B; Hajkova, O; Hamed, A
Source
Physical Review C - Nuclear Physics. 89(4)
Subject
Language
Abstract
STAR measurements of dihadron azimuthal correlations (Δφ) are reported in midcentral (20-60%) Au+Au collisions at sNN=200 GeV as a function of the trigger particle's azimuthal angle relative to the event plane, φs=|φt-ψEP|. The elliptic (v2), triangular (v3), and quadratic (v4) flow harmonic backgrounds are subtracted using the zero yield at minimum (ZYAM) method. The results are compared to minimum-bias d+Au collisions. It is found that a finite near-side (|Δφ|π/2) correlation shows a modification from d+Au data, varying with φs. The modification may be a consequence of path-length-dependent jet quenching and may lead to a better understanding of high-density QCD. © 2014 American Physical Society.