Heidelberg 2015 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 48: Poster

HK 48.10: Poster

Mittwoch, 25. März 2015, 17:00–19:00, C/Foyer

Feasibility Study of a Transversely Polarized Target in PANDA — Heybat Ahmadi^1,2, Samer Ahmed¹, Luigi Capozza^1,3, Alaa Dbeyssi^1,3, Malte Deiseroth^1,2, •Bertold Fröhlich^1,3, Dmitry Khaneft^1,2, Dexu Lin^1,3, Frank Maas^1,3, María Carmen Mora Espí^1,3, Cristina Morales Morales^1,3, Oliver Noll^1,2, David Rodríguez Piñeiro^1,3, Roserio Valente^1,2, Manuel Zambrana^1,2, and Iris Zimmermann^1,3 — ¹Helmholtz-Institut Mainz — ²Johannes Gutenberg-Universität Mainz — ³GSI Helmholtzzentrum für Schwerionenforschung GmbH

The PANDA (Antiproton Annihilation at Darmstadt) spectrometer, located at the Facility for Antiproton and Ion Research (FAIR), is an excellent tool for exploring the nucleon structure. An unpolarized target allows the determination of the electromagnetic time-like form factor of the proton. An additional experiment in which the target is transversely polarized is necessary for the first-time extraction of their imaginary part.

A transverse polarization requires the shielding of the 2 T longitudinal field from the PANDA-Solenoid at the target volume and an additional transverse holding field.

We present results from our first experiment at the Institut für Kernphysik in Mainz on intense magnetic flux shielding using a BSCCO (bismuth strontium calcium copper oxide) thin-wall hollow cylinder at 4.2 K and a 1.4 T external magnetic field and compare this to numerical calculations.