Study of dielectron production in C + C collisions at 1 A GeV
Date
2008Author
Krücken, R.Agakishiev, G.
Agodi, C.
Alvarez-Poll, H.
Bałanda, A.
Bassini, R.
Bellia, G.
Belver, D.
Belyaev, A.
Blanco, A.
Böhmer, M.
Bortolotti, A.
Boyard, J. L.
Braun-Munzinger, P.
Cabanelas, Pablo
Castro, E.
Chernenko, S.
Christ, T.
Destefanis, M.
Diáz, J.
Dohrmann, F.
Dybczak, A.
Eberl, T.
Fabbietti, L.
Fateev, O.
Finocchiaro, P.
Fonte, P.
Friese, J.
Fröhlich, I.
Galatyuk, T.
Garzón, J. A.
Gernhäuser, R.
Gil, A.
Gilardi, C.
Golubeva, M.
González-Díaz, D.
Grosse, E.
Guber, F.
Heilmann, M.
Heinz, T.
Hennino, T.
Holzmann, R.
Ierusalimov, A.
Iori, I.
Ivashkin, A.
Jurkovic, M.
Kämpfer, B.
Kajetanowicz, M.
Kanaki, K.
Karavicheva, T.
Kirschner, D.
Koenig, I.
Koenig, W.
Kolb, B. W.
Kotte, R.
Kozuch, A.
Krása, Antonín
Krizek, F.
Kühn, W.
Kugler, A.
Kurepin, A.
Lamas-Valverde, J.
Lang, S.
Lange, J. S.
Lapidus, K.
Lopes, L.
Maier, L.
Mangiarotti, A.
Marín, J.
Markert, J.
Metag, V.
Michalska, B.
Mishra, D.
Morinière, E.
Mousa, J.
Münch, M.
Müntz, C.
Naumann, L.
Novotny, R.
Otwinowski, J.
Pachmayer, Y. C.
Palka, M.
Parpottas, Yiannis
Pechenov, V.
Pechenova, O.
Pérez Cavalcanti, T.
Pietraszko, J.
Pleskac, R.
Pospísil, V.
Przygoda, W.
Ramstein, B.
Reshetin, A.
Roy-Stephan, M.
Rustamov, A.
Sadovsky, A.
Sailer, B.
Salabura, P.
Schmah, A.
Schroeder, C.
Schwab, E.
Simon, R. S.
Sobolev, Yu G.
Spataro, S.
Spruck, B.
Ströbele, H.
Stroth, J.
Sturm, C.
Sudol, M.
Tarantola, A.
Teilab, K.
Tlusty, P.
Toia, A.
Traxler, M.
Trebacz, R.
Tsertos, Haralambos
Veretenkin, I.
Wagner, V.
Weber, M.
Wen, H.
Wisniowski, M.
Wojcik, T.
Wüstenfeld, J.
Yurevich, S.
Zanevsky, Y.
Zhou, P.
Zumbruch, P.
Source
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy PhysicsVolume
663Issue
1-2Pages
43-48Google Scholar check
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The emission of e+ e- pairs from C + C collisions at an incident energy of 1 GeV per nucleon has been investigated. The measured production probabilities, spanning from the π0-Dalitz to the ρ / ω invariant-mass region, display a strong excess above the cocktail of standard hadronic sources. The bombarding-energy dependence of this excess is found to scale like pion production, rather than like eta production. The data are in good agreement with results obtained in the former DLS experiment. © 2008 Elsevier B.V. All rights reserved.