| Issue |
EPJ Web Conf.
Volume 199, 2019
MESON 2018 – 15th International Workshop on Meson Physics
|
|
|---|---|---|
| Article Number | 02008 | |
| Number of page(s) | 4 | |
| Section | Light Systems | |
| DOI | https://doi.org/10.1051/epjconf/201919902008 | |
| Published online | 01 February 2019 | |
https://doi.org/10.1051/epjconf/201919902008
Triangle singularity in the γp → pπ0η reaction ??
II. Physikalisches Institut, University of Giessen, Germany
* e-mail: volker.metag@exp2.physik.uni-giessen.de
Published online: 1 February 2019
The γp → pπ0η reaction has been studied with the CBELSA/TAPS detector system to search for experimental evidence for triangle singularities. Kinematically these singularities exist in the decay chain Δ* → ηΔ(1232) → ηπ0 p but do not show an experimental effect because of the weakness of the π0 − η interaction at low 
near threshold far below the a0(980) resonance.
© The Authors, published by EDP Sciences, 2019
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