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Bonn 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Bonn musste abgesagt werden! Lesen Sie mehr ...

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HK: Fachverband Physik der Hadronen und Kerne

HK 55: Hadron Structure and Spectroscopy IX

HK 55.4: Vortrag

Freitag, 3. April 2020, 12:00–12:15, J-HS A

Photoproduction of π0η pairs on nuclei — •Vahe Sokhoyan for the A2 collaboration — Universität Mainz, Institut für Kernphysik

In order to study the production mechanisms and possible modifications of baryon resonances in the nuclear medium, the beam helicity asymmetry I was measured with the A2 setup at MAMI for the photoproduction of π0η pairs on carbon, aluminum, and lead targets. The new data for the nuclear targets are compared to the existing free proton data and to the corresponding model calculations performed within the Mainz model. The obtained results are interpreted in terms of contributions of the D33 partial wave with the ηΔ(1232) intermediate state.

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