Two-kaon correlations in central Pb + Pb collisions at 158 A GeV/c

Two-particle interferometry of positive kaons is studied in Pb + Pb collisions at mean transverse momenta $<p_{T}>\approx 0.25$ and 0.91 GeV/c. A three-dimensional analysis was applied to the lower $p_T$ data, while a two-dimensional analysis was used for the higher $p_T$ data. We find that th...

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Detalles Bibliográficos
Autores principales: Bearden, I.G., Boggild, H., Boissevain, J., Christiansen, P.H.L., Conin, L., Dodd, J., Erazmus, B., Esumi, S., Fabjan, C.W., Ferenc, D., Franz, A., Gaardhoje, J.J., Hansen, A.G., Hansen, O., Hardtke, D., van Hecke, H., Holzer, E.B., Humanic, T.J., Hummel, P., Jacak, B.V., Kaimi, K., Kaneta, M., Kohama, T., Kopytine, M., Leltchouk, M., Ljubicic, A., Lorstad, B., Maeda, N., Martin, L., Medvedev, A., Murray, M., Ohnishi, H., Paic, G., Pandey, S.U., Piuz, F., Pluta, J., Polychronakos, V., Potekhin, M., Poulard, G., Reichhold, D., Sakaguchi, A., Schmidt-Sorensen, J., Simon-Gillo, J., Sondheim, W., Sugitate, T., Sullivan, J.P., Sumi, Y., Willis, W.J., Wolf, K., Xu, N., Zachary, D.S.
Lenguaje:eng
Publicado: 2001
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.87.112301
http://cds.cern.ch/record/508547
Descripción
Sumario:Two-particle interferometry of positive kaons is studied in Pb + Pb collisions at mean transverse momenta $<p_{T}>\approx 0.25$ and 0.91 GeV/c. A three-dimensional analysis was applied to the lower $p_T$ data, while a two-dimensional analysis was used for the higher $p_T$ data. We find that the source size parameters are consistent with the $m_T$ scaling curve observed in pion correlation measurements in the same collisions, and that the duration time of kaon emission is consistent with zero within the experimental sensitivity.

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