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Heidelberg 2015 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 48: Poster

HK 48.10: Poster

Wednesday, March 25, 2015, 17:00–19:00, C/Foyer

Feasibility Study of a Transversely Polarized Target in PANDAHeybat Ahmadi1,2, Samer Ahmed1, Luigi Capozza1,3, Alaa Dbeyssi1,3, Malte Deiseroth1,2, •Bertold Fröhlich1,3, Dmitry Khaneft1,2, Dexu Lin1,3, Frank Maas1,3, María Carmen Mora Espí1,3, Cristina Morales Morales1,3, Oliver Noll1,2, David Rodríguez Piñeiro1,3, Roserio Valente1,2, Manuel Zambrana1,2, and Iris Zimmermann1,31Helmholtz-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.

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