Modification of the $\rho$-meson detected by low-mass electron-positron pairs in central Pb - Au collisions at 158 A GeV/c

We present a measurement of $e^+e^-$ pair production in central Pb-Au collisions at 158$A$ GeV/$c$. As reported earlier, a significant excess of the $e^+e^-$ pair yield over the expectation from hadron decays is observed. The improved mass resolution of the present data set, recorded with the upgrad...

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Detalles Bibliográficos
Autores principales: Adamova, D., Agakichiev, G., Antonczyk, D., Appelshauser, H., Belaga, V., Bielcikova, J., Braun-Munzinger, P., Busch, O., Cherlin, A., Damjanovic, S., Dietel, T., Dietrich, L., Drees, A., Dubitzky, W., Esumi, S.I., Filimonov, K., Fomenko, K., Fraenkel, Z., Garabatos, C., Glassel, P., Holeczek, J., Kushpil, V., Maas, A., Marin, A., Milosevic, J., Milov, A., Miskowiec, D., Panebrattsev, Yu., Petchenova, O., Petracek, V., Pfeiffer, A., Rak, J., Ravinovich, I., Rehak, P., Sako, H., Schmitz, W., Sedykh, S., Shimansky, S., Stachel, J., Sumbera, M., Tilsner, H., Tserruya, I., Wessels, J.P., Wienold, T., Wurm, J.P., Xie, W., Yurevich, S., Yurevich, V.
Lenguaje:eng
Publicado: 2006
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2008.07.104
http://cds.cern.ch/record/998811

Internet

https://dx.doi.org/10.1016/j.physletb.2008.07.104
http://cds.cern.ch/record/998811

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