Beam energy and centrality dependence of two-pion Bose-Einstein correlations at SPS energies

Results are presented of a two-pion interferometry (HBT) analysis in Pb + Au collisions at 40, 80, and 158 AGeV. A detailed study of the Bertsch-Pratt HBT radius parameters has been performed as function of the mean pair transverse momentum $k_{t}$ and in bins of the centrality of the collision. Thi...

Descripción completa

Detalles Bibliográficos
Autores principales: Adamová, D., Agakichiev, G., Appelshäuser, H., Belaga, V., Braun-Munzinger, P., Campagnolo, R., Castillo, A., Cherlin, A., Damjanović, S., Dietel, T., Dietrich, L., Drees, A., Esumi, S.I., Filimonov, K., Fomenko, K., Fraenkel, Z., Garabatos, C., Glässel, P., Hering, G., Holeczek, J., Kushpil, V., Lenkeit, B., Ludolphs, W., Maas, A., Marĺn, A., Milošević, J., Milov, A., Miśkowiec, D., Musa, L., Panebrattsev, Yu., Petchenova, O., Petráček, V., Pfeiffer, A., Rak, J., Ravinovich, I., Rehak, P., Richter, M., Sako, H., Schmitz, W., Schukraft, J., Sedykh, S., Seipp, W., Sharma, A., Shimansky, S., Slĺvová, J., Specht, H.J., Stachel, J., Šumbera, M., Tilsner, H., Tserruya, I., Wessels, J.P., Wienold, T., Windelband, B., Wurm, J.P., Xie, W., Yurevich, S., Yurevich, V.V.
Lenguaje:eng
Publicado: 2003
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/S0375-9474(02)01369-6
http://cds.cern.ch/record/569574
Descripción
Sumario:Results are presented of a two-pion interferometry (HBT) analysis in Pb + Au collisions at 40, 80, and 158 AGeV. A detailed study of the Bertsch-Pratt HBT radius parameters has been performed as function of the mean pair transverse momentum $k_{t}$ and in bins of the centrality of the collision. This permits to extract model dependent information about the space-time evolution of the reaction. An investigation of the effective volume of the pion emitting system provides an important tool to study the properties of thermal pion freeze-out.

Ejemplares similares