Mainz 2022 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 42: Hadron Structure and Spectroscopy VII

HK 42.3: Vortrag

Mittwoch, 30. März 2022, 14:45–15:00, HK-H8

A FAIR Phase-0 Project at MAMI — Luigi Capozza¹, Alaa Dbeyssi¹, Alexander Greiner¹, Samet Katilmis¹, Dong Liu¹, Frank Maas^1,2,3, Julian Moik¹, Oliver Noll^1,2, David Rodriguez Piñeiro¹, Christoph Rosner¹, and •Sahra Wolff¹ — ¹Helmholtz-Institut Mainz, Mainz, Germany — ²Institute of Nuclear Physics, Mainz, Germany — ³PRISMA Cluster of Excellence, Mainz, Germany

Within the FAIR phase-0 project, the use of FAIR equipment at other facilities before the completion of the civil construction is envisaged. The PANDA EMC is a good candidate for FAIR Phase-0, due to the advanced state of its development. In particular, the backward endcap (BWEC) of the PANDA EMC, which is developed and built at HIM in Mainz, could be ready by 2022, three years before its foreseen installation. Therefore, an experiment at the MAMI electron beam facility making use of the BWEC is envisaged.

The goal is to measure the π₀ electromagnetic transition form factor in virtual Primakoff-kinematics via the electroproduction of a π₀ in the Coulomb field of a heavy nucleus. To select this channel, the momentum distribution of the π₀ needs to be measured by detecting the decay γ particles and the scattered electron in the EMC.

This talk will address the current status of the FAIR Phase-0 experiment at MAMI.