Elliptic flow of Lambda hyperons in Pb+Pb collisions at 158AGeV
- Antičić, Tome
- Alt, C.
- Baatar, B.
- Barna, D.
- Bartke, J.
- Betev, L.
- Bialkowska, H.
- Blume, C.
- Boimska, B.
- Botje, M.
- Bracinik, J.
- Bramm, R.
- Bunčić, P.
- Cerny, V.
- Christakoglou, P.
- Chung, P.
- Chvala, O.
- Cramer, J. G.
- Csato, P.
- Dinkelaker, P.
- Eckardt, V.
- Flierl, D.
- Fodor, Z.
- Foka, P.
- Friese, V.
- Gal, J.
- Gazdzicki, M.
- Georgopoulos, G.
- Gladysz, E.
- Grebieszkow, K.
- Hegyi, S.
- Höhne, C.
- Kadija, Krešo
- Karev, A.
- Kliemant, M.
- Kniege, S.
- Kolesnikov, V. I.
- Kornas, E.
- Korus, R.
- Kowalski, M.
- Kraus, I.
- Kreps, M.
- Lacey, R.
- Laszlo, A.
- van Leeuwen, M.
- Levai, P.
- Litov, L.
- Lungwitz, B.
- Makariev, M.
- Malakhov, A. I.
- Mateev, M.
- Melkumov, G. L.
- Mischke, A.
- Mitrovski, M.
- Molnar, J.
- Mrowczynski, S.
- Nikolić, Vedran
- Palla, G.
- Panagiotou, A. D.
- Panayotov, D.
- Petridis, A.
- Pikna, M.
- Prindle, D.
- Pühlhofer, F.
- Renfordt, R.
- Roland, C.
- Roland, G.
- Rybczynski, M.
- Rybicki, A.
- Sandoval, A.
- Schmitz, N.
- Schuster, T.
- Seyboth, P.
- Sikler, F.
- Sitar, B.
- Skrzypczak, E.
- Stefanek, G.
- Stock, R.
- Strabel, C.
- Ströbele, H.
- Šuša, Tatjana
- Szentpetery, I.
- Sziklai, J.
- Szymanski, P.
- Trubnikov, V.
- Varga, D.
- Vassiliou, M.
- Veres, G. I.
- Vesztergombi, G.
- Vranić, D.
- Wetzler, A.
- Wlodarczyk, Z.
- Wojtaszek, A.
- Yoo, I. K.
- Zimanyi, J.
DOIAbstract
The elliptic flow of Lambda hyperons has been measured by the NA49 Collaboration at the CERN-SPS in semicentral Pb+Pb collisions at 158A GeV. The standard method of correlating particles with the event plane was used. Measurements of v2 near midrapidity are reported as a function of rapidity, centrality and transverse momentum. Elliptic flow of Lambda particles increases both with the impact parameter and with the transverse momentum. It is compared with v2 for pions and protons as well as with model calculations. The observation of significant elliptic flow and its mass dependence suggest strong collective behavior of the matter produced in collisions of heavy nuclei already at the SPS. Scaling properties of elliptic flow of different part...
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