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Two-kaon correlations in central Pb+Pb collisions at 158 a GeV/c
Authors:Bearden I G  Bøggild H  Boissevain J  Christiansen P H  Conin L  Dodd J  Erazmus B  Esumi S  Fabjan C W  Ferenc D  Franz A  Gaardhøje 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  Lörstad 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-Sørensen J  Simon-Gillo J  Sondheim W  Sugitate T  Sullivan J P  Sumi Y  Willis W J  Wolf K  Xu N  Zachary D S
Institution:Niels Bohr Institute, DK-2100 Copenhagen, Denmark.
Abstract:Two-particle interferometry of positive kaons is studied in Pb+Pb collisions at mean transverse momenta approximately 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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