Abstract
The experimental programme of the CELSIUS/WASA Collaboration at the CELSIUS cooler/storage ring of the The Svedberg Laboratory, Uppsala, focuses on meson production and decay studies using light-ion collisions near threshold. The production of η-mesons has been studied in pp and pd collisions and 2π reactions have been studied in pp collisions, using the PROMICE/WASA detector. Both total and differential cross-sections have been investigated and some of the reaction channels have been measured for the first time in any detail. The data on η production reveal effects which can be attributed to a strong and attractive η-N interaction. Both the η and two-pion production data contain new information on the importance of different nucleon resonances in these reactions. The PROMICE/WASA detector is now an integrated part of the recently commissioned WASA detector at CELSIUS, which has a nearly 4π acceptance for both charged particles and photons. This will provide significantly improved conditions for a new generation of experiments on meson production and decays.
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Johansson, T. (2003). Meson production at CELSIUS. In: Elster, C., Speth, J., Walcher, T. (eds) Refereed and selected contributions from International Conference on Quark Nuclear Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-09712-0_33
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DOI: https://doi.org/10.1007/978-3-662-09712-0_33
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