Konferenzpaper
Autorenliste: Markert, J.; Agakishiev, G.; Agodi, C.; Balanda, A.; Bellia, G.; Belver, D.; Belyaev, A.; Blanco, A.; Boehmer, M.; Boyard, J. L.; Braun-Munzinger, P.; Cabanelas, P.; Castro, E.; Chernenko, S.; Christ, T.; Destefanis, M.; Diaz, J.; Dohrmann, F.; Dybczak, A.; Eberl, T.; Fabbietti, L.; Fateev, O.; Finocchiaro, P.; Fonte, P.; Friese, J.; Froehlich, I.; Galatyuk, T.; Garzon, J. A.; Gernhaeuser, R.; Gilardi, C.; Golubeva, M.; Gonzalez-Diaz, D.; Grosse, E.; Guber, F.; Heilmann, M.; Hennino, T.; Holzmann, R.; Ierusalimov, A.; Iori, I.; Ivashkin, A.; Jurkovic, M.; Kaempfer, B.; Kanaki, K.; Karavicheva, T.; Kirschner, D.; Koenig, I.; Koenig, W.; Kolb, B. W.; Kotte, R.; Kozuch, A.; Krizek, F.; Kruecken, R.; Kuehn, W.; Kugler, A.; Kurepin, A.; Lamas-Valverde, J.; Lang, S.; Lange, J. S.; Lopes, L.; Maier, L.; Mangiarotti, A.; Marin, J.; Markert, J.; Metag, V.; Michalska, B.; Mishra, D.; Moriniere, E.; Mousa, J.; Muentz, C.; Naumann, L.; Novotny, R.; Otwinowski, J.; Pachmayer, Y. C.; Palka, M.; Pechenov, V.; Pechenova, O.; Cavalcanti, T. Perez; Pietraszko, J.; Przygoda, W.; Ramstein, B.; Reshetin, A.; Roy-Stephan, M.; Rustamov, A.; Sadovsky, A.; Sailer, B.; Salabura, P.; Schmah, A.; Simon, R.; Spataro, S.; Spruck, B.; Stroebele, H.; Stroth, J.; Sturm, C.; Sudol, M.; Tarantola, A.; Teilab, K.; Tlusty, P.; Traxler, M.; Trebacz, R.; Tsertos, H.; Veretenkin, I.; Wagner, V.; Wen, H.; Wisniowski, M.; Wojcik, T.; Wuestenfeld, J.; Yurevich, S.; Zanevsky, Y.; Zumbruch, P.
Jahr der Veröffentlichung: 2007
Seiten: S1041-S1045
Zeitschrift: Journal of Physics G: Nuclear and Particle Physics
Bandnummer: 34
Heftnummer: 8
ISSN: 0954-3899
eISSN: 1361-6471
Open Access Status: Green
DOI Link: https://doi.org/10.1088/0954-3899/34/8/S152
Konferenz: 19th International Conference on Ultra-Relativistic Necleus-Nucleus Collisions
Verlag: IOP Publishing
Abstract:
We report on a measurement of electron pair production in C-12+C-12 collisions at an incident energy of 2 GeV per nucleon with the HADES spectrometer. The measured pair production probabilities span over five orders of magnitude from the pi(0)-Dalitz to the rho/omega invariant-mass region. Dalitz decays of pi(0) and account for all the yield up to 0.15 GeV/c(2), but for only about 50% above this mass. The excess yield is in agreement with the former DLS result if one assumes that it scales with beam energy like pion production. A preliminary analysis of C-12+C-12 collisions at an incident energy of 1 A GeV, measured with the HADES detector, supports this scenario.
Zitierstile
Harvard-Zitierstil: Markert, J., Agakishiev, G., Agodi, C., Balanda, A., Bellia, G., Belver, D., et al. (2007) Dielectron production in 12C+12C collisions at 2 A GeV with HADES, Journal of Physics G: Nuclear and Particle Physics, 34(8), pp. S1041-S1045. https://doi.org/10.1088/0954-3899/34/8/S152
APA-Zitierstil: Markert, J., Agakishiev, G., Agodi, C., Balanda, A., Bellia, G., Belver, D., Belyaev, A., Blanco, A., Boehmer, M., Boyard, J., Braun-Munzinger, P., Cabanelas, P., Castro, E., Chernenko, S., Christ, T., Destefanis, M., Diaz, J., Dohrmann, F., Dybczak, A., ...Zumbruch, P. (2007). Dielectron production in 12C+12C collisions at 2 A GeV with HADES. Journal of Physics G: Nuclear and Particle Physics. 34(8), S1041-S1045. https://doi.org/10.1088/0954-3899/34/8/S152
Schlagwörter
ELEMENTARY; HEAVY-ION COLLISIONS; MESONS; PI(0)
