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HK: Fachverband Physik der Hadronen und Kerne
HK 29: Hadron Structure and Spectroscopy VI
HK 29.6: Vortrag
Freitag, 3. September 2021, 15:30–15:45, H3
Model Dependence of the π1(1600) signal — •Fabian Krinner — Max Planck Institut für Physik, München, Deutschland
The COMPASS experiment has collected a large data set for diffractive π−π+π− production. We use this data set to investigate contradictions found by previous partial-wave analyses of the same channel for the signal of a spin-exotic partial wave with spin, parity and charge conjugation quantum numbers 1−+. We find a strong dependence of the signal for this wave on the used analysis model to cause the observed contradictions. We construct a large analysis model tuned to minimize such model-dependencies and study the robustness of this model with the freed-isobar partial-wave analysis method.