First results of the CELSIUS/WASA experiment

I. Koch, C. Bargholtz, D. Bogoslawsky, A. Bondar, H. Calén, F. Cappellaro, H. Clement, J. Comfort, L. Demirörs, E. Dorochkevitch, C. Ekström, K. Fransson, C. J. Fridén, B. Chernyshev, L. Gerén, M. Gornov, V. Grebenev, J. Greiff, Y. Gurov, L. GustafssonB. Höistad, G. Ivanov, M. Jacewicz, E. Jiganov, A. Johansson, T. Johansson, S. Keleta, K. Kilian, N. Kimura, S. Kullander, A. Kupść, L. Kurdadze, A. Kuzmin, A. Kuznetsov, K. Lindberg, P. Marciniewski, B. Martemyanov, R. Meier, B. Morosov, A. Nawrot, B. M K Nefkens, W. Oelert, S. Oreshkin, C. Pauly, Z. Pawlowski, Y. Petukhov, A. Povtorejko, J. Pätzold, D. Reistad, R. J M Y Ruber, V. Sandukovsky, W. Scobel, T. Sefzick, R. Shafigullin, M. Shepkin, V. Sidorov, B. Shwartz, T. Skorodko, V. Sopov, A. Starostin, J. Stepaniak, A. Sukhanov, V. Tchernychev, P. E. Tegner, P. Thörngren Engblom, V. Tikhomirov, A. Turowiecki, G. Wagner, U. Wiedner, K. Wilhelmsen, Z. Wilhelmi, A. Yamamoto, H. Yamaoka, J. Zabierowski, J. Zlomańczuk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


The CELSIUS/WASA experiment is now finishing its commissioning phase and has started regular data talcing in autumn 2001. Results from a first analysis of data samples from an experimental run at a beam energy of T p = 1360MeV in September 2001 are presented. The results show the ability to tag π 0 and η production events. For 2π 0 production a large data sample exists. The 2π 0 and 3π 0 production processes will be important sources of background for the η decays. They have until now been poorly measured, if at all. at this energy. The decay η → γγ will be used for normalization of all other η decays and the η → 3π 0 decay will test the light quark mass ratio predicted by Chiral Perturbation Theory.

Original languageEnglish (US)
Title of host publicationPhysica Scripta T
EditorsH. Calen, C. Ekstrom
Number of pages3
StatePublished - 2003
Event5th International Conference on Nuclear Physics at Storage Rings - Uppsala, Sweden
Duration: Jun 16 2002Jun 20 2002


Other5th International Conference on Nuclear Physics at Storage Rings

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'First results of the CELSIUS/WASA experiment'. Together they form a unique fingerprint.

Cite this