High Transverse Momentum Hadron Spectra at $\sqrt{s_{NN}}=17.3$ GeV, in Pb+Pb and p+p Collisions, Measured by CERN-NA49
- Anticic, T
- Baatar, B
- Barna, D
- Bartke, J
- Betev, L
- Bialkowska, H
- Blume, C
- Boimska, B
- Botje, M
- Bracinik, J
- Bramm, R
- Buncic, P
- Cerny, V
- Christakoglou, P
- Chung, P
- Chvala, O
- Cramer, J G
- Csató, P
- Dinkelaker, P
- Eckardt, V
- Flierl, D
- Fodor, Z
- Foka, P
- Friese, V
- Gál, J
- Gazdzicki, M
- Genchev, V
- Georgopoulos, G
- Gladysz-Dziadus, E
- Grebieszkow, K
- Hegyi, S
- Höhne, C
- Kadija, K
- Karev, A
- Kikola, D
- Kliemant, M
- Kniege, S
- Kolesnikov, V I
- Kornas, E
- Korus, R
- Kowalski, M
- Kraus, I
- Kreps, M
- Laszlo, A
- Lacey, R
- Van Leeuwen, M
- Lévai, Peter
- Litov, L
- Lungwitz, B
- Makariev, M
- Malakhov, A I
- Mateev, M
- Melkumov, G L
- Mischke, A
- Mitrovski, M
- Molnár, J
- Mrówczynski, S
- Nicolic, V
- Pálla, G
- Panagiotou, A D
- Panayotov, D
- Petridis, A
- Peryt, W
- Pikna, M
- Pluta, J
- Prindle, D
- Pühlhofer, F
- Renfordt, R
- Roland, C
- Roland, G
- Rybczynski, M
- Rybicki, A
- Sandoval, A
- Schmitz, N
- Schuster, T
- Seyboth, P
- Siklér, F
- Sitár, B
- Skrzypczak, E
- Slodkowski, M
- Stefanek, G
- Stock, R
- Strabel, C
- Ströbele, H
- Susa, T
- Szentpétery, I
- Sziklai, J
- Szuba, M
- Szymanski, P
- Trubnikov, V
- Varga, D
- Vassiliou, M
- Veres, G I
- Vesztergombi, G
- Vranic, D
- Wetzler, A
- Wlodarczyk, Z
- Wojtaszek, A
- Yoo, I K
- Zimányi, J
DOIAbstract
Transverse momentum spectra up to 4.5 GeV/c around midrapidity of $\pi^{\pm}, p, pbar, K^{\pm}$ in Pb+Pb reactions were measured at $\sqrt{s_{NN}}=17.3$ GeV by the CERN-NA49 experiment. The nuclear modification factors $R_{AA}$ and $R_{CP}$ were extracted and are compared to RHIC results at $\sqrt{s_{NN}}=200$ GeV. The modification factor $R_{AA}$ shows a rapid increase with transverse momentum in the covered region. This indicates that the Cronin effect is the dominating effect in our energy range. The modification factor $R_{CP}$, in which the contribution of the Cronin effect is reduced, shows a saturation well below unity in the $\pi^{\pm}$ channel. The extracted $R_{CP}$ values follow the 200 GeV RHIC results closely in the available t...
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