Darmstadt 2016 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 32: Hadron Structure and Spectroscopy V
HK 32.4: Vortrag
Mittwoch, 16. März 2016, 15:00–15:15, S1/01 A4
Search for the rare π0 decay into 3 photons at MAMI — •Jennifer Wettig and Wolfgang Gradl for the A2 collaboration — Institut für Kernphysik, Universität Mainz
The rare decay of the neutral π0 meson into 3 photons presents a unique possibility for a search of new, C-violating forces beyond the standard model. π0→ 3γ is effectively forbidden by charge conjugation invariance and one SM estimate for this branching ratio is 10−31.
This presentation will show a feasibility study for a future experiment at the tagged photon facility of MAMI (Glasgow Tagger) using Crystal Ball/TAPS detector setup together with particle identification detector (PID) and multi-wire proportional chambers (MWPCs). The CB detector is a high resolution spectrometer specifically designed to detect neutral final states and therefore well-suited for this task.
Supported by DFG under contract CRC1044 and excellence cluster PRISMA.