| Autor: |
Agakichiev G; Gesellschaft für Schwerionenforschung (GSI), 64291 Darmstadt, Germany., Appelshäuser H, Baur R, Bielcikova J, Braun-Munzinger P, Cherlin A, Drees A, Esumi SI, Filimonov K, Fraenkel Z, Fuchs Ch, Glässel P, Hering G, Huovinen P, Lenkeit B, Marín A, Messer F, Messer M, Milosevic J, Miśkowiec D, Nix O, Panebrattsev Y, Petrácek V, Pfeiffer A, Rak J, Ravinovich I, Razin S, Rehak P, Sako H, Saveljic N, Schmitz W, Shimansky S, Socol E, Specht HJ, Stachel J, Tilsner H, Tserruya I, Voigt C, Voloshin S, Weber C, Wessels JP, Wurm JP, Yurevich V |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2004 Jan 23; Vol. 92 (3), pp. 032301. Date of Electronic Publication: 2004 Jan 23. |
| DOI: |
10.1103/PhysRevLett.92.032301 |
| Abstrakt: |
Elliptic flow and two-particle azimuthal correlations of charged hadrons and high-p(T) pions (p(T)>1 GeV/c) have been measured close to midrapidity in 158A GeV/c Pb+Au collisions by the CERES experiment. Elliptic flow (v(2)) rises linearly with p(T) to a value of about 10% at 2 GeV/c. Beyond p(T) approximately 1.5 GeV/c, the slope decreases considerably, possibly indicating a saturation of v(2) at high p(T). Two-pion azimuthal anisotropies for p(T)>1.2 GeV/c exceed the elliptic flow values by about 60% in midcentral collisions. These nonflow contributions are attributed to nearside and back-to-back jetlike correlations, the latter exhibiting centrality dependent broadening. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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