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Event-plane-dependent dihadron correlations with harmonic v(n) subtraction in Au plus Au collisions at v root sNN=200 GeV
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SYSNO ASEP 0428457 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Event-plane-dependent dihadron correlations with harmonic v(n) subtraction in Au plus Au collisions at v root sNN=200 GeV Author(s) Agakishiev, G. (RU)
Aggarwal, M. M. (IN)
Ahammed, Z. (US)
Alakhverdyants, A. V. (RU)
Alekseev, I. (RU)
Alford, J. (US)
Anderson, B. D. (US)
Anson, C. (US)
Bielčík, J. (CZ)
Bielčíková, Jana (UJF-V) RID, ORCID, SAI
Chaloupka, Petr (UJF-V) RID
Chung, Paul (UJF-V)
Hajková, O. (CZ)
Kapitán, Jan (UJF-V)
Kushpil, Vasilij (UJF-V) ORCID, SAI
Krus, M. (CZ)
Pachr, M. (CZ)
Rusňák, Jan (UJF-V) RID, ORCID, SAI
Šumbera, Michal (UJF-V) RID, ORCID, SAI
Tlustý, David (UJF-V)Number of authors 369 Source Title Physical Review. C - ISSN 0556-2813
Roč. 89, č. 4 (2014), 041901Number of pages 7 s. Publication form Print - P Language eng - English Country US - United States Keywords STAR collaboration ; relativistic nuclear collisions ; quark-gluon plasma Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects GA13-20841S GA ČR - Czech Science Foundation (CSF) Institutional support UJF-V - RVO:61389005 UT WOS 000335233400001 DOI 10.1103/PhysRevC.89.041901 Annotation STAR measurements of dihadron azimuthal correlations (Lambda phi) are reported in midcentral (20-60%) Au + Au collisions at v root sNN = 200 GeV as a function of the trigger particle's azimuthal angle relative to the event plane, phi(s) = | phi(1) -psi(EP)|. The elliptic (v(2)), triangular (v(3)), and quadratic (v(4)) flow harmonic backgrounds are subtracted using the zero yield at mini + Au collisions. It is found that a finite near-side (| Delta phi | < pi/2) long-range pseudorapidity correlation (ridge) is present in the in-plane direction (phi(s) similar to 0). The away-side (| Delta phi | > pi/2) correlation shows a modification from d+ Au data, varying with fs. The modification may be a consequence of path-length-dependent jet quenching and may lead to a better understanding of high-density QCD. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2015
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