New results on low-mass lepton pair production in Pb-Au collisions at 158 GeV per nucleon
- Lenkeit, B C
- Agakichiev, G
- Appelshäuser, H
- Baur, R
- Braun-Munzinger, P
- Cherlin, A
- Ceretto, F
- Drees, A
- Esumi, S
- Faschingbauer, U
- Fraenkel, Zeev
- Fuchs, C
- Gatti, E
- Glässel, P
- Holl, P
- Jung, C
- Kraner, H
- Lenkeit, B C
- Messer, M
- Miskowiec, D
- Nix, O
- Panebratsev, Yu A
- Pfeiffer, A
- Rak, J
- Ravinovich, I
- Razin, S
- Rehak, P
- Richter, M
- Sampietro, M
- Saveljic, N
- Schmitz, W
- Schükraft, Jürgen
- Seipp, W
- Shimansky, S S
- Slivova, J
- Socol, E
- Specht, H J
- Stachel, J
- Tserruya, Itzhak
- Ullrich, T
- Voigt, C A
- Voloshin, S A
- Weber, C
- Wessels, J P
- Wienold, T
- Wurm, J P
- Yurevich, V
DOIAbstract
The CERES/NA45 experiment at the CERN-SPS is dedicated to study the production of e sup + e sup - -pairs in ultrarelativistic heavy ion collisions. Compared to extrapolations from results obtained in proton-induced reactions, it has previously observed an enhanced production in S-Au and Pb-Au collisions. To verify this enhancement and to study its properties, higher statistics were accumulated during a runtime in 1996. We report here, for the first time, on the results of this analysis
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