Delta /sup ++/ production and elliptic emission of K/sup +/ and pi /sup +/ in 158 A GeV Pb+Pb collisions

The Delta /sup ++/-resonance production and azimuthal angular correlations for K/sup +/ and pi /sup +/ have been studied in 158 A Ge V /sup 208/Pb+/sup 208/Pb collisions at the CERN SPS. The Delta /sup ++/ production was estimated from the invariant mass spectrum of p pi /sup +/-pairs by subtracting...

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Detalles Bibliográficos
Autor principal: Miake, Y
Lenguaje:eng
Publicado: 2001
Materias:
Nuclear Physics
Acceso en línea:http://cds.cern.ch/record/884870
Descripción
Sumario:The Delta /sup ++/-resonance production and azimuthal angular correlations for K/sup +/ and pi /sup +/ have been studied in 158 A Ge V /sup 208/Pb+/sup 208/Pb collisions at the CERN SPS. The Delta /sup ++/ production was estimated from the invariant mass spectrum of p pi /sup +/-pairs by subtracting a mixed event background. An event-by- event analysis of the azimuthal angular correlation with respect to the reaction plane shows that in semi-central collisions, K/sup +/ mesons are preferentially emitted out of the reaction plane, while pi /sup +/ mesons are emitted in the reaction plane.

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