PANIC 2014 - Particles and Nuclei International Conference 2014

Observation of hyperhydrogen by decay-pion spectroscopy in electron scattering

Not scheduled

1m

Main Building (Hamburg University)

Poster 10) Hadrons in medium - hyperons and mesons in nuclear matter

Speaker

Dr Patrick Achenbach (U Mainz)

Description

At the Mainz Microtron MAMI the first high-resolution spectroscopy of pionic decays of strange systems was performed in electron scattering. Kaons were detected with the short-orbit spectrometer Kaos making use of a broad momentum acceptance at zero degree with respect to the beam. Reactions of strangeness production were efficiently tagged. In coincidence about 1000 decay-pions were detected with high-resolution spectrometers. A monochromatic peak at approx. 133 MeV/c was observed that is a unique signature for the two-body decay of stopped hyperhydrogen.