Study of high-transverse-momentum pi0 pairs produced at the CERN Intersecting Storage Rings

Correlations of two pi /sup 0/ mesons with transverse momenta p/sub T/ up to 13 GeV/c have been measured with large azimuthal acceptance. Results for cross sections, p/sub out/, and z distributions are compared in detail with models based on two-constituent scattering and fragmentation. The width of...

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Detalles Bibliográficos
Autores principales: Kourkoumelis, C, Resvanis, L K, Filippas-Tassos, A, Fokitis, E, Cnops, A M, Iwata, S, Palmer, R B, Rahm, David Charles, Rehak, P, Stumer, I, Fabjan, Christian Wolfgang, Fields, T, Lissauer, D, Mannelli, I, Mouzourakis, P, Nappi, A, Willis, W J, Goldberg, M, Horwitz, N, Moneti, G C
Lenguaje:eng
Publicado: 1980
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.45.966
http://cds.cern.ch/record/142458
Descripción
Sumario:Correlations of two pi /sup 0/ mesons with transverse momenta p/sub T/ up to 13 GeV/c have been measured with large azimuthal acceptance. Results for cross sections, p/sub out/, and z distributions are compared in detail with models based on two-constituent scattering and fragmentation. The width of the constituent transverse-momentum Gaussian distribution would have to be doubled to match that from experiments with p/sub T/ below 5 GeV/c. A more likely explanation is the presence of processes with more than two constituents in the final state. (14 refs).

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